diff --git a/README.md b/README.md index 0651ae5cf7e..db30540e6cf 100644 --- a/README.md +++ b/README.md @@ -1,11 +1,10 @@ -# Allan Lab Website +# PSAL Lab Website -This is the website of our academic research group at Leiden University. +This will be the website of our academic research group PSAL (Privacy, Security and Automation Lab) at New York University. -This website is powered by Jekyll and some Bootstrap, Bootwatch. We tried to make it simple yet adaptable, so that it is easy for you to use it as a template. Plese feel free to copy and modify for your own purposes. You don't have to link to us or mention us (but of course we appreciate it). +Please be patient while we are working on this :) -Go to *aboutwebsite.md* to learn how to copy and modidy this page for your purpose. -Copyright Allan Lab. Code released under the MIT License. +Copyright [PSAL @ NYU](/). Code released under the MIT License. diff --git a/_data/alumni_bsc.yml b/_data/alumni_bsc.yml index 245f53a20d7..7a5ec402473 100644 --- a/_data/alumni_bsc.yml +++ b/_data/alumni_bsc.yml @@ -1,19 +1 @@ -- name: Vishnu Saj (IIT), Spring 2017 - -- name: Arjo Andringa, Spring 2016 - -- name: Joey Braspenning, Spring 2017 - -- name: Tjerk Benschop, Summer 2017 - -- name: Daniëlle van Klink, Spring 2016 - -- name: Margot Leemker, Spring 2017 - -- name: Sietske Lensen, Spring 2017 - -- name: Jasper van Egeraat, Spring 2018 - -- name: Ringo Groenewegen, Spring 2018 - -- name: Amber Vervloet, Spring 2019 +#- name: Vishnu Saj (IIT), Spring 2017 diff --git a/_data/alumni_members.yml b/_data/alumni_members.yml index 9df827ede52..21028f9f2b0 100644 --- a/_data/alumni_members.yml +++ b/_data/alumni_members.yml @@ -1,64 +1,12 @@ -- name: Gijsbert Verdoes - photo: verdoes.jpg - duration: In the Allan Lab 2015 - 2018, now Project manager at the FMD - info: Fine mechanical engineer associated with the FMD working in our group - email: verdoes@fmd.physics.leidenuniv.nl - number_educ: 1 - education1: Leidse instrumentmakers School - education2: - education3: - education4: +#- name: Gijsbert Verdoes +# photo: verdoes.jpg +# duration: In the Allan Lab 2015 - 2018, now Project manager at the FMD +# info: Fine mechanical engineer associated with the FMD working in our group +# email: verdoes@fmd.physics.leidenuniv.nl +# number_educ: 1 +# education1: Leidse instrumentmakers School +# education2: +# education3: +# education4: -- name: Irene Battisti - photo: irene.jpg - info: PhD student - duration: In the Allan Lab Jan 2015 to June 2019, now R&D scientist at Nearfield Instruments - email: Battisti@Physics.LeidenUniv.nl - number_educ: 3 - education1: Master Padova University - education2: Master thesis at Leiden University with Jan van Ruitenbeek - education3: PhD Leiden University! - -- name: Doohee Cho - photo: Doohee2.jpg - info: Postdoc - duration: In the Allan Lab May 2017 to June 2019, now assistant professor at Yonsei University - email: cho@physics.leidenuniv.nl - number_educ: 4 - education1: B.S. Yonsei University, Korea - education2: PhD Yonsei University, Korea with In-Whan Lyo - education3: Postdoc POSTECH with Han Woong Yeom - education4: Postdoc Rutgers with Sang-Wook Cheong - -- name: Maarten Leeuwenhoek - photo: Maarten.png - info: PhD Student, shared with the Groeblacher lab at TU Delft under a NanoFront grant. - email: M.Leeuwenhoek@tudelft.nl - duration: In the Allan Lab December 2015 to February 2020, now design engineer at ASML - number_educ: 1 - education1: Master Leiden University with Milan Allan - education2: - education3: - education4: - -- name: Freek Groenewoud - photo: Freek.jpg - info: Fine mechanical engineer (also associated with the FMD) - email: Groenewoud@physics.leidenuniv.nl - number_educ: 2 - duration: In the Allan Lab 2018 - 2020 - education1: Leidse Instrumentmaker School - education2: Mechanical Engineer , Hogeschool Delft - education3: - education4: - -- name: Damianos Chatzopoulos - photo: Damianos.jpg - info: PhD Student, started December 2017 - duration: In the Allan Lab Dec 2017 - Dec 2021, now at Rabobank - email: chatzopoulos@Physics.LeidenUniv.nl - number_educ: 2 - education1: Bachelor National and Kapodistrian University of Athens with D Syvridis - education2: Master TU Delft with Herre van der Zant - education3: diff --git a/_data/alumni_msc.yml b/_data/alumni_msc.yml index 2b7b4068826..d9cede9e7da 100644 --- a/_data/alumni_msc.yml +++ b/_data/alumni_msc.yml @@ -1,33 +1,3 @@ -- name: Maarten Leeuwenhoek, Spring 2015 +#- name: Maarten Leeuwenhoek, Spring 2015 -- name: Koen M Bastiaans, Spring 2015 -- name: Farshaad Hoeseni, Fall 2015 - -- name: Oliver Ostojic, Spring 2016 - -- name: Tjerk Benschop, Spring 2016 - -- name: Bert Visscher, Fall 2017 - -- name: Ahmad Jamalzada, Fall 2017 - -- name: Corne Koks, Fall 2018 - -- name: Damian Bouwmeester (TU Delft), Summer 2019 - -- name: Rosanne Wijgman (RU), Fall 2019 - -- name: Rebecca Gharibaan (TU Delft), Fall 2020 - -- name: Rémi Claessen, Fall 2020 - -- name: Amber Mozes (TU Delft), Fall 2020 - -- name: Evert Stolte, Spring 2021 - -- name: Sergio Barquero Pierantoni, Spring 2021 - -- name: Maialen Larrazabal Ortego, Spring 2021 - -- name: Allard Nieuwesteeg, Spring 2021 diff --git a/_data/news.yml b/_data/news.yml index 1ba3161fd83..86b21858f91 100644 --- a/_data/news.yml +++ b/_data/news.yml @@ -1,184 +1,3 @@ +- date: 30. April 2021 + headline: "**Welcome Victoria and Genesis!**" -- date: 23. May 2022 - headline: "Two new papers on arXiv! One on [persistent gaps and non-mean-field breakdown of SC](https://arxiv.org/abs/2205.09740), and one on [shot-noise of individual (putative) Majorana modes](https://arxiv.org/abs/2205.10346)." - -- date: 17. March 2022 - headline: "Milan wins an ERC CoG grant! See [Leiden news](https://www.universiteitleiden.nl/en/news/2022/03/understanding-superconductivity-comes-closer-with-major-erc-grant-for-milan-allan). " - -- date: 29. October 2021 - headline: "**Our new paper, on Cooper pairs above Tc, is published in [Science](https://www.science.org/doi/10.1126/science.abe3987)**. - See [SRON news](https://www.sron.nl/news/5169-elektronparen-blijven-stabiel-boven-kritische-temperatuur-supergeleiding), [TU Delft news](https://www.tudelft.nl/en/2021/eemcs/inexplicably-stable-electron-pairs-without-superconductivity), [Leiden news](https://www.universiteitleiden.nl/en/news/2021/10/new-quantum-liquid-discovered), [Physics World](https://physicsworld.com/a/cooper-pairs-spotted-above-critical-temperature-for-superconductivity/)." - -- date: 1. October 2021 - headline: Maialen will join us within a collaboration with the Swart Lab -- welcome Maialen! - -- date: 15. September 2021 - headline: Amber will join us with Casimir-Nanofront PhD fellowship -- welcome Amber! - -- date: 28. June 2021 - headline: Welcome Jinwon! - -- date: 16. March 2021 - headline: "Koen wrote about his research in EurophysicsNews (page 12)." - -- date: 16. February 2021 - headline: "Our new paper on twisted bilayer graphene from our Leiden-ICFO collaboration in PRR." - -- date: 22. January 2021 - headline: "Koen wins the Ehrenfest-Afanassjewa prize for best physics thesis of the Netherlands!" - -- date: 21. January 2021 - headline: "New paper on arXiv, on Cooper pairs above Tc" - -- date: 16. January 2021 - headline: "Our YSR paper is out, in collaboration with Copenhagen." - -- date: 08. December 2020 - headline: "Our new paper is out, in collaboration with the groups of Baumberger, Perry and Mackenzie." - -- date: 02. November 2020 - headline: "Maarten's paper is published in Microsyst Nanoeng." - -- date: 15. October 2020 - headline: "Welcome Jiasen!" - -- date: 29. September 2020 - headline: "TGB paper (led by ICFO and Geneva) is in Nature Physics! See also coverage by Dorine Schenk in NRC" - -- date: 14. September 2020 - headline: "Maarten's paper is published in PRB." - -- date: 18. March 2020 - headline: "LION made a nice video about Koen and his research." - -- date: 8. January 2020 - headline: "Irene wins discoverer of the year by the faculty of Science! (Press release)!" - -- date: 10. December 2019 - headline: "Koen defends his PhD with a cum laude (top 5%)!" - -- date: 5. September 2019 - headline: "The noise doubling paper is published in Phys. Rev. B!" - -- date: 25. August 2019 - headline: "Doohee got an assistant professor job at Yonsei University!" - -- date: 25. July 2019 - headline: "The inhomogeneous superfluid paper is published in Nature!" - -- date: 15. July 2019 - headline: "We imaged the doubling of shot noise due to Andreev reflections in a STM, posted on arXiv." - -- date: 24. May 2019 - headline: "The smart tip paper is finally published ! A collaboration with the Gröblacher Lab at TU Delft." - -- date: 08. May 2019 - headline: "Irene defends her PhD!" - -- date: 08. May 2019 - headline: "Dome makes it on the University website. " - -- date: 13. December 2018 - headline: "Our paper about how to construct an STM is in Review of Scientific Instruments. " - -- date: 08. October 2018 - headline: "We discovered charge trapping in a high-Tc superconductor! Publication in Nature Physics. " - -- date: 27. September 2018 - headline: "Our MHz amplifier for STM is published in Review of Scientific Instruments. " - -- date: 16. May 2018 - headline: "Milan, Koen and Irene talk about superconductivity in Made in Leiden." - -- date: 4. May 2018 - headline: "Welcome Ram!" - -- date: 5.-9. March 2018 - headline: "Irene and Milan are at the March Meeting (Talk Tue 10am, session E45)" - -- date: 13. November 2017 - headline: " New paper published in collaboration with the group of Jan van Ruitenbeek" - -- date: 10. November 2017 - headline: "Doohee makes the third place at the LION Image Award. " - -- date: 9. October 2017 - headline: "We contributed to Miguel and Jan's new paper. " - -- date: 12. August 2017 - headline: "We got an ERC starting grant." - -- date: 10. August 2017 - headline: "Our paper is published in SciPost Physics." - -- date: 17. - 21. July 2017 - headline: "Milan wins the Bryan R. Coles prize at SCES 2017, Prague. Koen received the best poster presentation award. " - -- date: 17. - 21. July 2017 - headline: "Koen, Maarten and Milan will be at SCES 2017, Prague. Come check out our posters on Tuesday&Thursday and talk on Thursday!" - -- date: 18. June 2017 - headline: "Paper on poor electronic screening published in PRB as Editors' selection! " - -- date: 15. May 2017 - headline: Welcome Doohee! - -- date: 13. - 17. March 2017 - headline: Koen & Irene give talks at the APS March Meeting in New Orleans. - -- date: 27. January - 3. March 2017 - headline: "We are looking forward to co-hosting the workshop on unconventional superconductivity at the Lorentz center. " - -- date: 17-18. January 2017 - headline: Irene, Koen, Maarten and Milan will be at Physics@Veldhoven 2017. (Talk at PT6.1 and poster at P9.022). - -- date: 25. November 2016 - headline: "We are part of a newly granted Vrije Programma on strange metals, together with the groups of Hussey, Golden, vHeumen, Zaanen, Schalm, Stoof and Vandoren, see press release. We also got a Projectruimte." - -- date: 19. September 2016 - headline: " Our first paper from Leiden is online at Nature Physics! " - -- date: 12. September 2016 - headline: Koen is at Correl16, Julich. - -- date: 01. July 2016 - headline: Milan is at the strongly correlated electron GRC 2016. - -- date: 24. June 2016 - headline: Felix Baumberger is visiting. - -- date: 17. June 2016 - headline: Irene is at SNS2016. - -- date: 28. April 2016 - headline: Our results on the Mott & pseudo gap physics posted on arXiv ! - -- date: 14. May 2016 - headline: Ivan Bozovic is visiting. - -- date: 17. March 2016 - headline: Koen, Irene & Vitaly present a poster at Sun Sailing Science. - -- date: 17. Jan 2016 - headline: "We discover electronic order and pseudogap in a non-cuprate materal! " - -- date: 01. Jan 2016 - headline: Welcome Vitaly! - -- date: 17. June 2015 - headline: Welcome Kees! - -- date: 17. June 2015 - headline: "Maarten wins the LION image award! Check out his submission." - -- date: 17. June 2015 - headline: " We win a Vidi grant: 800kEUR to invest in science! (Leiden news, FOM news item) " - -- date: 01. Sept 2015 - headline: "Welcome Koen and Maarten: from Master- to PhD-students" - -- date: 17. June 2015 - headline: "We got our commercial STM from Unisoku, and we are already busy modifying." - -- date: 01. Jan 2015 - headline: Welcome Irene, Gijsbert & Milan — our lab is officially starting! diff --git a/_data/publist.yml b/_data/publist.yml index 61f0469025a..139597f9cb0 100644 --- a/_data/publist.yml +++ b/_data/publist.yml @@ -1,362 +1,2 @@ -- title: "Determination of the charge transfer when tunneling into putative Majorana modes in individual vortices in FeTe0.55Se0.045" - image: imageaward_edited.png - description: Shot noise has been suggested for a long time as a tell-tale probe for Majorana bound states. We are the first to carry out local tunneling shot noise measurements on the putative vortex Majorana states. - authors: J-F Ge, KM Bastiaans, D Chatzopoulos, D Cho, WO Tromp, T Benschop, J Niu, G Gu, MP Allan - link: - url: https://arxiv.org/abs/2205.10346 - display: arXiv:2205.10346 (2022) - highlight: 1 -- title: "Puddle formation, persistent gaps, and non-mean-field breakdown of superconductivity in overdoped (Pb,Bi)2Sr2CuO6+δ" - image: BSCCOgap.png - description: Why do cuprate superconductors stop superconducting past a certain doping level? Using scanning tunneling spectroscopy we find that an emerging metallic matrix inside the superconducting state is responsible for the overall reduction of Tc and the superfluid density, while leaving the gapsize unchanged. The formation of the matrix is tied to a pair breaking process violating a core principle of mean-field theories. - authors: WO Tromp, T Benschop, J-F Ge, I Battisti, KM Bastiaans, D Chatzopoulos, A Vervloet, S Smit, E van Heumen, MS Golden, Y Huang, T Kondo, Y Yin, JE Hoffman, MA Sulangi, J Zaanen, MP Allan - link: - url: https://arxiv.org/abs/2205.09740 - display: arXiv:2205.09740 (2022) - highlight: 1 -- title: "Direct evidence for Cooper pairing without a spectral gap in a disordered superconductor above Tc" - image: Pairs3.png - description: We use our atomic-scale scanning tunneling noise setup on a disordered superconductor, and discover a state above TC that, much like an ordinary metal, has no (pseudo)gap, but carries charge via paired electrons. - authors: KM Bastiaans, D Chatzopoulos, J-F Ge, D Cho, WO Tromp, JM van Ruitenbeek, MH Fischer, PJ de Visser, DJ Thoen, EFC Driessen, TM Klapwijk, MP Allan - link: - url: https://www.science.org/doi/10.1126/science.abe3987 - display: Science 374, 608 (2021) - highlight: 1 - news1: Featured as 'Research Highlight' in Nature Physics by David Abergel - news2: See [Physics World](https://physicsworld.com/a/cooper-pairs-spotted-above-critical-temperature-for-superconductivity/), [SRON news](https://www.sron.nl/news/5169-elektronparen-blijven-stabiel-boven-kritische-temperatuur-supergeleiding), [TU Delft news](https://www.tudelft.nl/en/2021/eemcs/inexplicably-stable-electron-pairs-without-superconductivity), [Leiden news](https://www.universiteitleiden.nl/en/news/2021/10/new-quantum-liquid-discovered). - -- title: "Imaging moiré deformation and dynamics in twisted bilayer graphene" - image: TBG_SL.png - description: Why is there so much variation in TBG devices? And are open devices more disordered than encapsulated ones? We introduce a new method to continuously map inhomogeneities of a moiré lattice and apply it to open-device TBG to show that twist angle variation is small over areas of hundreds of nm. - authors: TA de Jong, T Benschop, X Chen, EE Krasovskii, MJA de Dood, RM Tromp, MP Allan, SJ van der Molen - link: - url: https://journals.aps.org/prresearch/abstract/10.1103/PhysRevResearch.3.013153 - display: arXiv:2107.14716 (2021) - highlight: 0 - news2: - -- title: "Measuring local moiré lattice heterogeneity of twisted bilayer graphene" - image: TBG_SL.png - description: Why is there so much variation in TBG devices? And are open devices more disordered than encapsulated ones? We introduce a new method to continuously map inhomogeneities of a moiré lattice and apply it to open-device TBG to show that twist angle variation is small over areas of hundreds of nm. - authors: T Benschop *, TA de Jong*, P Stepanov*, Xiaobo Lu, V Stalman, SJ van der Molen, DK Efetov, MP Allan - link: - url: https://journals.aps.org/prresearch/abstract/10.1103/PhysRevResearch.3.013153 - display: Phys. Rev. Research 3, 013153 (2021) - highlight: 1 - news2: See also [arXiv:2107.14716](https://arxiv.org/abs/2107.14716) - -- title: "Spatially dispersing Yu-Shiba-Rusinov states in the unconventional superconductor FeTe0.55Se0.45" - image: YSR.png - description: We report on a peculiar, spatially dispersing YSR state in Fe(Se,Te) that can be tuned by the tip. - authors: D Chatzopoulos, Doohee Cho, KM Bastiaans, GO Steffensen, D Bouwmeester, A Akbari, Genda Gu, J Paaske, BM Andersen, MP Allan - link: - url: https://www.nature.com/articles/s41467-020-20529-x - display: Nature Communications 12, 298 (2021) - highlight: 1 - -- title: "Multi-Atom Quasiparticle Scattering Interference for Superconductor Energy-Gap Symmetry Determination" - image: TBG_ARPES.png - description: - authors: R Sharma, A Kreisel, MA Sulangi, J Böker, A Kostin, MP Allan, H Eisaki, AE Böhmer, PC Canfield, I Eremin, JC Davis, PJ Hirschfeld, PO Sprau - link: - url: https://dx.doi.org/10.1038/s41535-020-00303-4 - display: npj Quantum Materials 6, 7 (2021) - highlight: 0 - news2: - - -- title: "Observation of flat bands in twisted bilayer graphene" - image: TBG_ARPES.png - description: A first paper from the TBG collaboration is online, with beautiful data from the Baumberger group in Geneva, and great devices from the Efetov group at ICFO. We measured STM on the device. - authors: S Lisi*, X Lu*, T Benschop*, TA de Jong*, Petr S, JR Duran, F Margot, I Cucchi, E Cappelli, A Hunter, A Tamai, V Kandyba, A Giampietri, A Barinov, J Jobst, V Stalman, M Leeuwenhoek, K Watanabe, T Taniguchi, L Rademaker, SJ van der Molen, MP Allan, DK Efetov, F Baumberger - link: - url: https://www.nature.com/articles/s41567-020-01041-x - display: Nature Physics 17, 198 (2020) - highlight: 1 - news2: News coverage by NRC - -- title: "Direct comparison of ARPES, STM, and quantum oscillation data for band structure determination in Sr2RhO4" - image: Direct.png - authors: I Battisti, WO Tromp, S Riccò, RS Perry, AP Mackenzie, A Tamai, F Baumberger, MP Allan - description: We directly test the consistency of results from these three techniques by comparing data from the correlated metal Sr2RhO4. Using ARPES, STM, and quantum oscillations, we find good agreement for the Fermi surface topography and carrier effective masses. Hence, the apparent absence of such an agreement in other quantum materials, including the cuprates, suggests that the electronic states in these materials are of different, non-Fermi liquid-like nature. Collaboration with the groups of Baumberger, Perry, and Mackenzie. - link: - url: https://www.nature.com/articles/s41535-020-00292-4 - display: npj Quantum Materials 5, 91 (2020) - highlight: 1 - news2: - -- title: "Fabrication of on-chip probes for double-tip scanning tunneling microscopy" - image: TBG_ARPES.png - authors: M Leeuwenhoek, F Groenewoud, K van Oosten, T Benschop, MP Allan, S Gröblacher - description: - link: - url: https://www.nature.com/articles/s41378-020-00209-y - display: Microsyst. Nanoeng. 6, 99 (2020) - highlight: 0 - news2: - -- title: "Modeling Green's functions measurements with two-tip scanning tunneling microscopy" - image: TBG_ARPES.png - description: A first paper from the TBG collaboration is online, with beautiful data from the Baumberger group in Geneva, and great devices from the Efetov group at ICFO. We measured STM on the device. - authors: M Leeuwenhoek, S Gröblacher, MP Allan, YaM Blanter - link: - url: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.102.115416 - display: PRB 102, 115416 (2020) - highlight: 0 - news2: - -- title: "A strongly inhomogeneous superfluid in an iron-based superconductor" - image: STS_news.png - description: We succeeded in measuring the superfluid density with atomic resolution on an unconventional superconductor! In contrast to expectations for conventional superconductors, we find that the superfluid densisty is strongly inhomogeneous in FeTe0.55Se0.45. - authors: D Cho* & KM Bastiaans* & D Chatzopoulos*, GD Gu, MP Allan - link: - url: https://www.nature.com/articles/s41586-019-1408-8 - display: Nature 571, 541 (2019) - highlight: 1 - news2: - -- title: "Nanofabricated tips as a platform for double-tip and device based scanning tunneling microscopy" - image: SmartPub.png - description: We introduce a platform for bringing new, device-based functionality to STM, with the goal of utilizing decades of progress in device engineering for the field of scanning probe. - authors: M Leeuwenhoek, RA Norte, KM Bastiaans, Doohee Cho, I Battisti, YaM Blanter, S Gröblacher, MP Allan - link: - url: https://iopscience.iop.org/article/10.1088/1361-6528/ab1c7f/pdf - display: Nanotechnology 30, 335702 (2019) - highlight: 1 - news2: See also our papers on the theoretical modeling of such measurements, and the paper about fabrication. - -- title: "Imaging doubled shot noise in a Josephson scanning tunneling microscope" - image: PbSpub.png - description: We have imaged the doubling of the current noise due to Andreev reflections in a Josephson scanning tunneling microscope. - authors: KM Bastiaans, D Cho, D Chatzopoulos, M Leeuwenhoek, C Koks, MP Allan - link: - url: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.100.104506 - display: Phys. Rev. B 100, 104506 (2019) - highlight: 1 - news2: - -- title: "Definition of design guidelines, construction and performance of an ultra-stable scanning tunneling microscope for spectroscopic imaging" - image: DomePub.png - description: Our first completely home-built STM is alive! And it has the world’s highest resonance frequency. - authors: I Battisti, G Verdoes, K van Oosten, KM Bastiaans, and MP Allan - link: - url: https://aip.scitation.org/doi/10.1063/1.5064442 - display: Rev. Sci. Instrum. 89, 123705 (2018) - highlight: 1 - news2: - -- title: "Charge trapping and super-Poissonian noise centres in a cuprate superconductor" - image: Pub_BCl.png - description: Using our newly developed noise-spectroscopy technique we discover charge trapping in a cuprate high-temperature superconductor. - authors: KM Bastiaans* & D Cho*, T Benschop, I Battisti, Y Huang, MS Golden, Q Dong, Y Jin, J Zaanen, MP Allan - link: - url: https://www.nature.com/articles/s41567-018-0300-z - display: Nature Physics 14, 1183 (2018) - highlight: 1 - news1: Instrument details in Rev. Sci. Instrum. 89, 093709 (2018) - news2: See also quantum universe (in dutch), Phys.org , Leiden University news, UvA news. - -- title: "Amplifier for scanning tunneling microscopy at MHz frequencies" - image: Fano.png - description: We develop, build and test a novel amplifier circuit capable of measuring the tunneling current in the MHz regime while simultaneously performing conventional STM measurements. We are looking forward to performing scanning noise spectroscopy on quantum materials! - authors: KM Bastiaans, T Benschop, D Chatzopoulos, D Cho, Q Dong, Y Jin, MP Allan - link: - url: https://aip.scitation.org/doi/10.1063/1.5043267 - display: Rev. Sci. Instrum. 89, 093709 (2018) - highlight: 0 - news2: - -- title: "Revisiting quasiparticle scattering interference in high-temperature superconductors: the problem of narrow peaks" - image: dummy.png - description: "" - authors: MA Sulangi, MP Allan, J Zaanen - link: - url: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.96.134507 - display: PRB 96, 134507 (2017) - highlight: 0 - news2: Coverd in Superconductor Week, November 30, 2017 Vol. 31, No. 10 - -- title: Robust procedure for creating and characterizing the atomic structure of scanning tunneling microscope tips - image: dummy.png - description: "" - authors: S Tewari, KM Bastiaans, MP Allan, JM van Ruitenbeek - link: - url: http://www.beilstein-journals.org/bjnano/content/pdf/2190-4286-8-238.pdf - display: Beilstein J. Nanotechnol. 8, 2389 (2017) - highlight: 0 - news2: - -- title: Creating better superconductors by periodic nanopatterning - image: SCAUweb.jpg - description: - We propose an approach to transform a ‘pristine’ material into a better (meta-) superconductor by making use of modern fabrication techniques -- designing and engineering the electronic properties of thin films via periodic patterning on the nanoscale. - authors: - MP Allan, MH Fischer, O Ostojic, A Andringa - link: - url: https://scipost.org/SciPostPhys.3.2.010/pdf - display: SciPost Phys. 3, 010 (2017) - highlight: 1 - -- title: Poor electronic screening in lightly doped Mott insulators observed with scanning tunneling microscopy - image: TIBB.png - description: - We develop a simple model to interpret STM results on lightly doped Mott insulators, and find that the effective Mott gap measured by STM correspons to the one measured with other techniques when taking into account the poor electronic screeing. - authors: - I Battisti, V Fedoseev, KM Bastiaans, A de la Torre, RS Perry, F Baumberger, MP Allan - link: - url: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.95.235141 - display: Phys. Rev. B 95, 235141, Editors' suggestion (2017) - highlight: 0 - -- title: Universality of pseudo gap and emergent order in lightly doped Mott insulators - image: Mott_phase_sep.jpg - description: - We discover of electronic order, pseudo gap phase separation and an impurity-band Mott transition in an iridate compound, cuprate-style. Along the way, we gained unique knowledge on how a Mott state collapses. - authors: - I. Battisti* & K.M. Bastiaans*, V. Fedoseev, A. de la Torre, N. Iliopoulos, A. Tamai, E.C. Hunter, R.S. Perry, J. Zaanen, F. Baumberger, M.P. Allan - link: - url: http://www.nature.com/nphys/journal/vaop/ncurrent/full/nphys3894.html - display: Nature Physics 13, 21 (2017) - highlight: 1 - news2: See also Leiden University news by Erik Arends, Phys.org - -- title: Identifying the fingerprint of antiferromagnetic spin fluctuations in iron pnictide superconductors - image: Pub_FP.png - description: - Both the density of states and the QPI dispersion of LiFeAs shows signatures of electron-boson coupling. Comparing these with fingerprints of different boson couplings to conclude that these signatures stem from AF spin fluctuations. - authors: - MP Allan* & Kyungmin Lee* & AW Rost*, MH Fischer, F Massee, K Kihou, C-H Lee, A Iyo, H Eisaki, T-M Chuang, AP Mackenzie, JC Davis, DJ Scalapino, E-A Kim - link: - url: http://www.nature.com/nphys/journal/v11/n2/full/nphys3187.html - display: Nature Physics 11, 177 (2015) - highlight: 1 - news1: - news2: See also Cornell Chronicle by Anne Ju, Phys.org - -- title: Direct evidence for a magnetic f-electron mediated Cooper pairing mechanism of heavy fermion superconductivity in CeCoIn5 - image: dummy.png - description: "" - authors: - J Van Dyke, F Massee, MP Allan, JC Davis, C Petrovic, and DK Morr - link: - url: http://www.pnas.org/content/111/32/11663 - display: PNAS 111, 11663 (2014) - highlight: 0 - news1: News item in Science - news2: - -- title: Imaging Cooper pairing of heavy fermions in CeCoIn5 - image: Pub_CeCoIn5.png - description: - The heavy Fermion superconductor CeCoIn5 has a d-wave gap with nodes along the (1,1) direction, as we find using QPI. - authors: - MP Allan* & F Massee*, DK Morr, J van Dyke, AW Rost, AP Mackenzie, C Petrovic, JC Davis - link: - url: http://www.nature.com/nphys/journal/vaop/ncurrent/abs/nphys2671.html - display: Nature Physics 9, 468 (2013) - highlight: 1 - news1: Featured in 'News and Views' by L Taillefer - news2: See also Phys.org, DoE headliner - -- title: Formation of heavy d-electron quasiparticles in Sr3Ru2O7 - image: Pub_327.png - description: - Using APRES, we find that the bands in Sr3Ru2O7 look more like in heavy fermion material than in a normal metal. We present a detailed investigation into the formation of this particular electronic structure. - authors: - MP Allan, A Tamai, E Rozbicki, MH Fischer, J Voss, PDC King, W Meevasana, S Thirupathaiah, E Rienks, J Fink, A Tennant, RS Perry, JF Mercure, MA Wang, J Lee, CJ Fennie, E-A Kim, MJ Lawler, KM Shen, AP Mackenzie, Z-X Shen, F Baumberger - link: - url: http://iopscience.iop.org/1367-2630/15/6/063029 - display: New Journal of Physics 15, 063029 (2013) - highlight: 1 - news: Video abstract available - -- title: Anisotropic impurity states, quasiparticle scattering and nematic transport in underdoped Ca(Fe1−xCox)2As2 - image: Pub_nemat2b.png - description: - We elucidate on the formation of the electronic nematic state in Co-CaFe2As2, finding that the Cobalt dopant atoms play a key role. - authors: - MP Allan, T-M Chuang, F Massee, Y Xie, N Ni, SL Bud’ko, GS Boebinger, Q Wang, DS Dessau, PC Canfield, MS Golden, JC Davis - highlight: 1 - link: - url: http://www.nature.com/nphys/journal/v9/n4/full/nphys2544.html - display: Nature Physics 9, 220 (2013) - news2: See also Tech Connect by Jennifer Rocha, Phys.org by Bill Steele - -- title: Anisotropic energy gaps of iron-based superconductivity from intraband quasiparticle interference in LiFeAs - image: Pub_LiFeAs.png - description: - In contrast to earlier photoemission reports, we show that the gaps in iron based superconductors are not isotropic but modulated with angle. - authors: - MP Allan⋆ & AW Rost⋆, AP Mackenzie, Y Xie, JC Davis, K Kihou, CH Lee, A Iyo, H Eisaki, T-M Chuang - link: - url: http://www.sciencemag.org/content/336/6081/563 - display: Science 336, 563 (2012) - highlight: 1 - news2: See also Cornell Cornincle by Bill Steele, Eureka Alert - -- title: How Kondo-holes create intense nanoscale heavy-fermion hybridization disorder - image: dummy.png - description: "" - authors: MH Hamidian, AR Schmidt, IA Firmo, MP Allan, P Bradley, JD Garrett, TJ Williams, GM Luke, Y Dubi, AV Balatsky, JC Davis - link: - url: http://www.pnas.org/content/108/45/18233 - display: PNAS 108, 18233 (2011) - highlight: 0 - news2: - -- title: Nematic electronic structure in the “parent” state of the iron-based superconductor Ca(Fe1−xCox)2As2 - image: Pub_nemat1.png - description: - We discovered an electronic nematic in the iron based superconductor Co-CaFe2As2! This state is by now confirmed and quite well characterized by transport, photoemission, and more SI-STM experiments. - authors: - T-M Chuang* & MP Allan*, J Lee, Y Xie, N Ni, SL Bud’ko, GS Boebinger PC Canfield, JC Davis - link: - url: http://www.sciencemag.org/content/327/5962/181 - display: Science 327, 181 (2010) - highlight: 1 - news1: Featured in a ‘Perspective’ by E Fradkin & SA Kivelson - news2: See also Article on NewScientist by Colin Barras - -- title: Heavy d-electron quasiparticle interference and real-space electronic structure of Sr3Ru2O7 - image: Pub_hBN.png - description: - QPI in Sr327. - authors: Jinho Lee* & M. P. Allan*, M. A.Wang, J. Farrell, S. A. Grigera, F. Baumberger, J. C. Davis and A. P. Mackenzie - link: - url: https://www.nature.com/nphys/journal/v5/n11/full/nphys1397.html - display: Nature Physics 5, 800 (2009) - highlight: 0 - -- title: Fermi surface and van Hove singularities in the itinerant metamagnet Sr3Ru2O7 - image: Pub_hBN.png - description: - We determine the Fermi surface of Sr327. - authors: - A Tamai, MP Allan, JF Mercure, W Meevasana, R Dunkel, DH Lu, RS Perry, AP Mackenzie, David J Singh, Z-X Shen, F Baumberger - link: - url: http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.101.026407 - display: Phys. Rev. Lett. 101, 026407 (2008) - highlight: 0 - -- title: Tunable self-assembly of one-dimensional nanostructures with orthogonal directions - image: Pub_hBN.png - description: - Hexagonal boron nitride shows fancy superstructures on the Mo(111) surface. - authors: - MP Allan, S Berner, M Corso, T Greber, J Osterwalder - link: - url: http://www.nanoscalereslett.com/content/2/2/94 - display: Nanoscale Research Letters 2, 94 (2007) - highlight: 1 - -- title: Photoelectron Diffraction for a Look inside Nanostructures - image: dummy.png - description: "" - authors: - J Osterwalder, A Tamai, W Auwärter; MP Allan, T Greber - link: - url: hhttp://www.ingentaconnect.com/content/scs/chimia/2006/00000060/00000011/art00013 - display: CHIMIA 11, 759 (2006) - highlight: 0 diff --git a/_data/students.yml b/_data/students.yml index 5f942d0e71b..048e66d4c8f 100644 --- a/_data/students.yml +++ b/_data/students.yml @@ -1,4 +1,4 @@ -#- name: +#- name: Sage Jung # photo: rock.jpg # info: # email: @@ -7,17 +7,3 @@ # education2: # education3: # education4: - -- name: Thijs van den Munckhof - photo: rock.jpg - info: Master student - email: m.ortego.larrazabal@umail.leidenuniv.nl - number_educ: 0 - education1: - -- name: João van der Ven - photo: rock.jpg - info: BSc student - email: m.ortego.larrazabal@umail.leidenuniv.nl - number_educ: 0 - education1: diff --git a/_data/team_members.yml b/_data/team_members.yml index ecc41477841..581ea953ee8 100644 --- a/_data/team_members.yml +++ b/_data/team_members.yml @@ -1,36 +1,33 @@ -- name: Milan P Allan - photo: Milan1.jpg +- name: Rachel Greenstadt + photo: Greenstadt.jpg info: Associate professor, started Jan 2015 - email: milan.allan@gmail.com - number_educ: 5 - education1: Master ETHZ, Diplomarbeit with J Osterwalder, University of Zurich - education2: PhD St Andrews (while at Cornell University) with Felix Baumberger and JC Davis - education3: Postdoc Cornell - education4: ETH fellow at ETHZ with Andreas Wallraff - education5: Bryan R. Coles Prize 2017 - -- name: Jianfeng (Jacky) Ge - photo: Jacky.jpg - info: Postdoc, started Oct 2019 - email: ge@Physics.LeidenUniv.nl + email: greenstadt[@] nyu.edu number_educ: 3 - education1: Postdoc with Jenny Hoffman, Harvard University - education2: PhD with Jinfeng Jia, Shanghai Jiao Tong University - education3: B.S. East China University of Science and Technology + education1: PhD Computer Science, Harvard University with Michael D Smith + education2: M.Eng. Electrical Engineering and Computer Science, Massachusetts Insitute of Technology (MIT) with Robert Morris + education3: B.S. Computer Science, Massachusetts Insitute of Technology (MIT) -- name: Jiasen Niu - photo: Jiasen.png - info: Postdoc, started Oct 2020 - email: niu@physics.leidenuniv.nl +- name: Cameron Ballard + photo: cameron.jpg + info: PhD Candidate. Joined Fall 2019. + email: clb478[@] nyu.edu number_educ: 2 - education1: PhD with Xi Lin and Jian Wei, Peking University - education2: BSc Jilin University -- name: Jinwon Lee - photo: Jinwon.jpg - info: Postdoc, started July 2021 - email: jwlee0421@postech.ac.kr - number_educ: 2 + education1: M.S. Computer Science, NYU Tandon + education2: B.S. Computer Science, NYU Shanghai + +- name: Genesis Smothers + photo: Genesis.jpg + info: PhD, started August 2021 + email: gs3687@nyu.edu + number_educ: 1 + education1: B.A. Computer Science, Howard University + +- name: Kejsi Take + photo: Kejsi.jpg + info: PhD Candidate started August 2018 + email: kejsitake[@] nyu.edu +======= education1: PhD with Han Woong Yeom Pohang University of Science and Technology (POSTECH) education2: BSc Pohang University of Science and Technology (POSTECH) @@ -38,82 +35,36 @@ photo: website_pic_willem.jpg info: PhD Student, started September 2018 email: WTromp@physics.leidenuniv.nl - number_educ: 1 - education1: Master Leiden University with Felix Baumberger, Milan Allan - education2: - education3: - education4: -- name: Tjerk Benschop - photo: tjeruk.jpg - info: PhD Student, started November 2018 - email: benschop@physics.leidenuniv.nl - number_educ: 2 - education1: Master Leiden University with Milan Allan - education2: Casimir PhD fellowship - education3: - education4: + number_educ: 1 + education1: B.A. Computer Science, American University in Bulgaria -- name: Amber Mozes - photo: Amber.png - info: PhD Student, started September 2021 - email: b - number_educ: 2 - education1: Master Applied Physics, TU Delft - education2: Casimir/Nanofront PhD fellowship - education3: - education4: +- name: Brian Timmerman + photo: Brian.jpg + info: PhD Candidate started August 2018 + email: brian.timmerman[@] nyu.edu + number_educ: 1 + education1: B.S. Computer Engineering, Binghamton University -- name: Maialen Ortego Larrazabal - photo: Maialen.png - info: PhD Student within a collaboration with the Swart Lab - email: b +- name: Janith Weerasinghe + photo: Janith.jpg + info: PhD Candidate, started January 2019 + email: janith[@] nyu.edu number_educ: 2 - education1: Master Leiden University - education2: BSc, University of the Basque Country - education3: - education4: + education1: M.Sc Computer Science, Drexel University + education2: B.Sc Computer Science and Engineering, University of Moratuwa -- name: Kees van Oosten - photo: DSC_1032.JPG - info: FFine mechanical engineer (also associated with the FMD) - email: Oosten@fmd.physics.leidenuniv.nl +- name: Victoria Zhong + photo: Victoria.png + info: PhD Student, started August 2021 + email: vzhong[@] nyu.edu number_educ: 2 - education1: Leidse instrumentmakers School - education2: Associate degree Mechanical Engineering, Hogeschool Arnhem Nijmegen -- name: Hugo van Bohemen - photo: hugo.jpg - info: Fine mechanical engineer (also associated with the FMD) - email: h.s.m.van.bohemen@physics.leidenuniv.nl - number_educ: 1 - education1: Leidse Instrumentmakers School - education2: - -- name: Koen M Bastiaans - photo: Koen.jpg - info: NWO Veni fellow, collaborating with us and stationed in the Otte Lab - email: Bastiaans@Physics.LeidenUniv.nl - number_educ: 4 - education1: Postdoc in the Otte Lab, Leiden University - education2: Postdoc in the Allan Lab, Leiden University - education3: PhD with Milan Allan, Leiden University (started Sep 2015) - education4: Master Leiden University with Milan Allan - - -- name: Kaveh Lahabi - photo: Kaveh.png - info: NWO Veni fellow, collaborating with us and the van der Sar lab - email: Bastiaans@Physics.LeidenUniv.nl - number_educ: 3 - education1: Postdoc in the Aarts Lab, Leiden University - education2: PhD with Jan Aarts - education3: Master KU Leuven - name: "This could be you !" photo: rock.jpg - info: See openings for more info - email: milan.allan@gmail.com + info: See openings for more info + email: number_educ: 0 education1: education2: diff --git a/_pages/research.md b/_pages/research.md index 26c628dfe1b..6632114dd23 100644 --- a/_pages/research.md +++ b/_pages/research.md @@ -1,46 +1,35 @@ --- -title: "Allan Lab - Research" +title: "PSAL - Research" layout: textlay -excerpt: "Allan Lab -- Research" +excerpt: "Privacy Security and Automation Lab: Research" sitemap: false permalink: /research/ --- # Research -Our overarching goal is to explore and understand new quantum states of electronic matter on the atomic scale. To do so, we use and develop novel spectroscopic-imaging scanning tunneling microscopy (SI-STM) tools to visualize the relevant quantum mechanical degrees of freedom. +The main goal of our lab is to investigate the privacy, and security implications of the technology we use everyday and measures to protect privacy and maintain data integrity. +We utilize quantitative, qualitative, as well as machine learning methods for our studies. -Our goal is to build instruments and develop techniques that enable us to address the questions we find most interesting. This is possible thanks also to Milan's broad background with different research themes and technologies: he learned his trade in [Seamus Davis’ SI-STM lab](http://davisgroup.lassp.cornell.edu/) and with [Felix Baumberger](http://dpmc.unige.ch/gr_baumberger/index.html), and later moved as an [ETH fellow](http://www.ethfellows.ethz.ch/) to [Andreas Wallraff’s qudev lab](http://www.qudev.ethz.ch/) where he investigated coupled cavity arrays in circuit QED. We further have group members with different background and interests, working together on physics and instrumentation. +Some of the topics we are working on are: -Here are some themes and techniques that we currently work on: +** Understanding the behavior of Tor users on Wikipedia, including their contributions as well as the response from Wikipedia itself. We want to understand whether Wikipedia users who want anonymity contribute in the same manner as those who are less concerned with anonymity. -**Scanning tunneling noise spectroscopy (STNS).** We have developed a novel cryogenic MHz amplifier that allows us to measure not only the average tunneling current, but also its fluctuation! This has many applications: one can detect the fluctuations of the electronic states, peculiar tunneling processes, and shot noise. We have used this instrument to discover charge trapping in the insulating layer of the cuprates, connected to the c-axis mystery, and to measure the doubling of the charge due to Andreev processes to the superfluid in a lead sample. +** Using stylometry for the purposes of author verification and applying it to identify sock puppet accounts on social media such as identifying IRA accounts as well as sockpuppets on trading subreddits such as r/wallstreetbets and cryptocurrency subreddits. This research is also applied to identify the risk of deanonymization due to similar writing styles. -**Mott physics and high-temperature superconductivity.** Questions of interest include: (i), How does the Mott state collapse upon doping and how is this related to the complex phase diagram of high-temperature superconductors? (ii), What is the strange metal phase seen in correlated electron systems? Is this an exotic long-range entangled state? What is the mechanism of dissipation in that state? (iii), Why is the transition temperature in high-temperature superconductors so high? We have worked on iridates, rhodates, and cuprates. +** Understanding the landscape of Conspiracy Theories. In April 2022, we have published in ACM's WWW conference [Conspiracy Brokers: Understanding the +Monetization of YouTube Conspiracy +Theories](https://arxiv.org/pdf/2205.15943.pdf) that studied how conspiracy videos are monetized and the types of advertisements shown. -**Nanofabricated "Smart Tips"**. -![]({{ site.url }}{{ site.baseurl }}/images/respic/SmartTip.png){: style="width: 250px; float: left; margin: 0px 10px"} -One of the  projects back from my job-proposal is to develop nanofabricated STM tips. The idea behind these “smart tips” is to use the technologies that were developed over decades in nanofabrication and make them available for scanning probe by using a nano-device instead of the traditional STM tungsten tip. One gains the flexibility of using different functionalities that are known from the fields of nanofabrication and mesoscopic physics. We are collaborating with the group Simon Groeblacher at TU Delft to realize this concept, benefitting from their unparalleled micro/nano fabrication know how.  A prototype of a smart tip is shown to the left. See publications in Microsyst Nanoeng, Nanotechnology, and PRB. +** Detecting ”Calls to Harassment” and studying harassment communities -**Josephson STM.** Josephson STM has the ability to gain insight into spatial variations of the order parameter, or superfluid density. We have managed to, for the first time, use JSTM with atomic resolution on a quantum material. -We have used atomic-resolution Josephson scanning tunneling microscopy to reveal a strongly inhomogeneous superfluid in the iron-based superconductor FeTe0.55Se0.45. The results and their implications are published in Nature. +** Usability and efficacy of opt-outs for People Search Websites---sites where one can search up people's private information such as addresses and phone numbers. We are also investigating services that claim to remove your information from the internet such as DeleteMe. -We also detected and investigated a quite particular YSR state in the same material. +** Intimate Partner Survellance, both the landscape of the communities where users can turn to for help surveilling their partner as well as apps not created for surveillance but can also be used for surveillance. -**Ultra-stable SI-STM instrument.** ![]({{ site.url }}{{ site.baseurl }}/images/respic/STMHead.png){: style="width: 250px; float: right; margin: 0px 10px"} -For SI-STM, having the most stable STM head is key. We have used finite element simulations, good choices in material science, and craftsmanship to build the most stable STM head in the world, to our knowledge. See publication in RSI. +** Privacy implications and attitudes around distanced learning - -**Strange Metals.** The strange metal phase might be the most mysterious phase of high-temperature superconductors. Here, the electrical resistivity grows linearly with temperature T in large areas of the phase diagram, with a mean free path that diminishes to a fraction of the interatomic distance. T-linear resistivity is often associated with quantum critical points and marginal-Fermi-liquid physics. In strange metals, the mystery seems to go even further: we deal with something that looks like a quantum critical phase over an extended range of the phase diagram instead of cumulating in a point. There exists no consistent theory for strange metals, leading to more adventurous new approaches including the holographic theories that use insights from gravity to explain strange metals (a recent textbook on this was written by our colleagues at Leiden University, Schalm and Zaanen). -We are part of the 'Strange Metal consortium NL' that includes the groups of Hussey, Golden, van Heumen, Zaanen, Schalm, Stoof and Vandoren.  - -**Magnetic fluctuations and electron spin resonance.** -![]({{ site.url }}{{ site.baseurl }}/images/respic/SpinFluc.png){: style="width: 70%; float: center; margin: 10px"} - -**Twisted bilayer graphene and other material with super-periodicities.** -We have proposed that artificial super-periodicities can lead to improved superconductivity, both because of increased density of states and because of phase space arguments (see image from our SciPost publication below). Perhaps for different reasons, twisted bilayer graphene has been shown to superconduct! We are investigate this material with the groups of Efetov, Baumberger, and van der Molen. - -![]({{ site.url }}{{ site.baseurl }}/images/respic/SciPost.png){: style="width: 70%; float: center; margin: 0px"} +** Manipulating Instagram with reciprocity pods ### ... and more. diff --git a/_pages/team.md b/_pages/team.md index 0a89d3d3e9a..cb3e3208d1c 100644 --- a/_pages/team.md +++ b/_pages/team.md @@ -1,7 +1,7 @@ --- -title: "Allan Lab - Team" +title: "PSAL - Team" layout: gridlay -excerpt: "Allan Lab: Team members" +excerpt: "Privacy Security and Automation Lab: Team members" sitemap: false permalink: /team/ --- @@ -11,7 +11,7 @@ permalink: /team/ **We are looking for new PhD students, Postdocs, and Master students to join the team** [(see openings)]({{ site.url }}{{ site.baseurl }}/vacancies) **!** -Jump to [staff](#staff), [master and bachelor students](#master-and-bachelor-students), [alumni](#alumni), [administrative support](#administrative-support), [lab visitors](#lab-visitors). +Jump to [staff](#staff), [master and bachelor students](#master-and-bachelor-students), [alumni](#alumni), [lab visitors](#lab-visitors). ## Staff {% assign number_printed = 0 %} @@ -192,5 +192,5 @@ Jump to [staff](#staff), [master and bachelor students](#master-and-bachelor-stu -## Administrative Support -Ellie van Rijsewijk is helping us (and other groups) with administration. + diff --git a/images/teampic/Amber.png b/images/teampic/Amber.png deleted file mode 100644 index e4b55d44103..00000000000 Binary files a/images/teampic/Amber.png and /dev/null differ diff --git a/images/teampic/Brian.jpg b/images/teampic/Brian.jpg new file mode 100644 index 00000000000..7854580d1b2 Binary files /dev/null and b/images/teampic/Brian.jpg differ diff --git a/images/teampic/DSC_1032.JPG b/images/teampic/DSC_1032.JPG deleted file mode 100644 index 9dd0e65d2bd..00000000000 Binary files a/images/teampic/DSC_1032.JPG and /dev/null differ diff --git a/images/teampic/Damianos.jpg 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