Dr. Yongtao Cui
I joined the Shen group as a postdoc fellow in September 2011. I received my PhD degree in Applied Physics from Cornell University. My PhD work was focused on studies of magnetic dynamics in a nanomagnet excited by transfer of the spin angular momentum from itinerant electrons. I am now working on the Microwave Impedance Microscopy technique - using it to probe materials' dielectric properties at the nano-scale, and expanding its capacity to study even richer physics.
Dr. Simon Gerber
In November 2013 I joined the Shen group as a postdoctoral research fellow. I received my PhD degree from ETH Zürich for research conducted at the Paul Scherrer Institute. My thesis work was focused on the interplay of unconventional superconductivity and magnetism investigated by neutron scattering. Here, I am primarily utilizing the unique capabilities of the x-ray free electron laser LCLS to study the formation of symmetry-breaking ground states in strongly correlated electron systems by means of ultrafast x-ray scattering.
Dr. Dominik Leuenberger
Since April 2013 I'm working in the Shen group. I received my PhD degree from the University of Zurich. We studied microscopic scattering processes in solids, at solid state surfaces and interfaces, which occur on very short time scales, by means of time-resolved ARPES. I'm particularly interested in investigating such processes in materials with strong spin-orbit interaction and strong electron-phonon coupling, motivated by gaining basic understanding but also regarding applications in terms of future devices.
Dr. Wei Li
I am currently a postdoctoral fellow in the Shen Group and I joined the lab in the autumn of 2012. I received my BS degree and Ph.D. degree in Physics from Tsinghua University, China. During my Ph.D., I focused on the MBE-growth and in-situ low-temperature STM measurements of iron-based superconductor and topological insulator thin films. My current research interests lie in the observation of strongly-correlated electron materials in momentum space via high-resolution ARPES experiments. I am also very interested in the newly developed scanning Microwave Impedance Microscopy. With the capability of probing both the metals and insulators, it is a really powerful technique to explore the various properties of complex quantum materials.
Dr. Hao Yan
I am currently a joint postdoctoral fellow between Shen and Melosh labs. I received my Ph.D. in chemistry from Harvard in 2010. From 2010 to 2011 I was a postdoctoral researcher at Harvard under advisory of Charles Lieber. My current research focuses on the materials science of diamondoids- essentially molecular-scale diamond. Our unique capability to separate, chemically functionalize and assemble these molecules offers an ideal playground for materials scientists to study the properties of diamond and diamond-like structures at the nanometer scale. My current interest lies on the photoemission and electron-phonon interaction in diamondoids and their hybrid structures; in the long term I am also interested in understanding their thermal, mechanical and electronic properties, as well as their applications.
Dr. Yongliang Yang
I joined the Shen group in October 2010. I received a B. S. degree in Physics from Peking University of China in 2005 and Ph. D in Microelectronics from Chinese Academy of Science in China in 2010. I am currently working on scanning Microwave Impedance Microscopy (MIM). This technique probes local dielectric and conductivity information of materials. Our goals are batch fabricating the micro-cantilever tips for MIM and improving the sensitivity and resolution of the technique. I also study ferroelectric materials and Metal Insulator Transition materials.
Dr. Yan Zhang
My research interest is to study the novel phenomena in condensed matter systems, including high-Tc superconductivity, charge-density wave, orbital ordering, magnetic ordering, etc. I am interested in utilizing the angle-resolved photoemission spectroscopy (ARPES) technique to study the exotic electronic structures of these materials. Together with the ultra-thin film and single crystal growth techniques, I would like to unveil the unconventional many-body interactions in these materials and to understand how the delicate balance between them could be responsible for emergent phenomena in condensed matter systems. The results could further provide solid experimental foundations for searching and understanding new functional materials.
Dr. Yi Zhang
I joined the Shen group in September 2011. I received my B. S. degree from Peking University of China in 2006, and my Ph. D. degree from Institute of Physics, Chinese Academy of Sciences in 2011. I am now mainly working at the HERS endstation of beamline 10.0.1 in ALS. I have built an in-situ MBE system at this beamline, and keep developing this MBE system with more capability. Using this synchrotron based APRES-MBE combined system, my current research interest is focused on the MBE growth of the novel quantum materials, such as topological insulators, topological semimetals, and graphene -like 2D materials. I am interested in studying their exotic electronic properties in low-dimensional limit, and exploring their further application in spintronics, quantum information, and optoelectronic devices.