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Graduate Students

Sudi Chen

I am a graduate student in the department of Applied Physics. I joined Shen group in January 2014, half a year after receiving my B.S. degree in Physics from Fudan University. My major research interest lies in the field of strongly correlated electron systems. In Shen group, I use state-of-the-art angle-resolved photoemission to study high temperature superconductors. My goal is to look for universal physics in these complex quantum materials.
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Alexandre Gauthier

I am a graduate student in the Applied Physics department. I joined the Shen group in 2015 after completing my bachelor's degree at the University of Pittsburgh. I am using time-resolved ARPES to probe the non-equilibrium behavior of diverse materials. By combining ARPES with ultrafast laser pulses, we are able to gain new insights into the interactions between various degrees of freedom.
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Yu He

My current research includes photoemission spectroscopy studies on high-Tc superconductors, specifically LSCO and Bi2201 system in cuprates. In these systems, the scenario of how Mott insulator melts into superconductors and how strong electron-phonon coupling (in the form of polaronic excitation) influences superconductivity are mostly addressed via phenomenological approaches. I joined Stanford Applied Physics department and later Shen Group in Fall 2010, shortly after graduation from University of Science and Technology of China (USTC/0600) in the summer.
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Tao Jia

I am a graduate student in the department of physics. I received my B.S. degree in Physics from Peking University in the summer of 2014, and joined Shen group in the spring of 2015. I am interested in 2D systems in general, and especially systems where there are intriguing and competing phases. Currently I am using molecular beam epitaxy (MBE) and angle-resolved photoemission spectroscopy (ARPES) to study systems with strong electron-phonon coupling, such as FeSe thin film superconductor.
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Haiyu Lu

I am a graduate student in Physics department. I received my bachelor's degree at Fudan University and joined Shen group in 2015. I'm working with graduate students and postdocs from Prof. Nick Melosh's group and Prof. Steve Chu's group on the diamondoid project. I have been synthesizing diamondoid-seeded high-purity nanodiamond and doping it with different defect centers by using PECVD system. In the near future, I am excited to explore the novel physical and biological application of this material, including quantum information processing, diamond-based superconductor and bio-imaging.

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Jay Qu

I am a graduate student in the Physics department. I joined the Shen group late 2017, after completing my bachelor's degree at Harvard University. I am interested in understanding materials with exotic quantum states and phases, through the prism of the electronic structure. And so, I am excited to be part of efforts that utilitize novel time- and spin-resolved ARPES capabilities to study these materials through a whole new lens.
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Slavko Rebec

I am a graduate student in the department of Applied Physics. I received my B.S.E in Applied Physics from Case Western Reserve University in the spring of 2014 and joined the Shen group in the fall of 2014. I am interested in designing and growing 2D systems, which utilize the unique physics of interfaces, to explore exotic phases of matter. I am currently using molecular beam epitaxy together with angular resolved photo emission spectroscopy to grow and study thin-film super conductors.
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Hongyu (Richard) Xiong

As a PhD student in Department of Applied Physics, I'm now working in Prof. Shen’s group with a focus on spin-resolved photoemission spectroscopy. I graduated from Peking University (2010-2012) and Rice University (2012-2014) with a BS degree in Physics and a minor in Maths, and I joined Shen group in January 2015. I used to work in Prof. Rui-Rui Du's lab at Rice on microwave-tuned Quantum Hall Effect. Now my scientific interests are topological insulators and iron-based superconductors, and on route I'm involved in the construction of next-generation spin-resolved ARPES which uses a spin-TOF detector. I'm also a great skier and a huge fan in travelling and outdoor activities!
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Kejun (Ben) Xu

Hi! I'm from the land of true north (AKA Canada) and joined the Applied Physics department/Shen group in Sept 2016 after completing my undergrad at the University of Toronto. I'm interested in a wide range of problems in the field of quantum materials, although I'm currently working on scanning microwave microscopy of 2D systems and strongly correlated materials that exhibit metal-insulator transitions (MIT). Feel free to contact me with questions (no guarantees on answers though).
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