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About Shen Lab

We focus on the emergent properties in quantum materials and related novel tool developments.

We study a variety of materials, such as high-temperature superconductors, topological insulators, and quantum materials at atomically thin limit. By probing their interactions with electromagnetic radiation, ranging from x-rays, to the ultraviolet, and into the microwave regime, we gain insight into the underlying physics governing the emergent properties in these condensed matter systems.

Research

Our current research involves the study of emergent properties in quantum materials. Our primary experimental tool is angle-resolved photoemission spectroscopy (ARPES), but we also perform experiments using resonant x-ray scattering and near-field microwave microscopy techniques. Our research also involves the exploration of materials inspired by energy applications, such as photon-enhanced thermionic emission and novel diamondoids for lighting and field emission.

People

Dr. Shen is the Paul Pigott Professor in Physical Sciences, and a senior fellow of the Precourt Institute for Energy, Stanford University. He is also the Advisor for Science and Technology of SLAC National Accelerator Laboratory and a member of the advisory committee of the Joint Center of Energy Storage Research. Over the last two decades, he has mentored more than fifty graduate students and postdoctoral associates. About thirty of them are now faculty members of research universities around the world.

Publications


Lee, J. J. et al. Interfacial mode coupling as the origin of the enhancement of Tc in FeSe films on SrTiO3. Nature 515, 245 (2014)

Hashimoto, M. et al. Direct spectroscopic evidence for phase competition between the pseudogap and superconductivity in Bi2Sr2CaCu2O8+δ. Nature Mater., advanced online publication, doi:10.1038/nmat4116 (2014)

Feng, Z. A. et al. Fast vacancy-mediated oxygen ion incorporation across the ceria–gas electrochemical interface. Nature Comm. 5, 4374 (2014)

Yang, S.-L. et al. Electron propagation from a photo-excited surface: implications for time-resolved photoemission. App. Phys. A 116, 85 (2014)

Liu, Z. K. et al. A stable three-dimensional topological Dirac semimetal Cd3As2. Nature Mat. 677, 85 (2014)

Hashimoto, M. et al. Energy gaps in high-transition-temperature cuprate superconductors. Nature Phys. 10, 483 (2014)

Yi, M. et al. Dynamic competition between spin-density wave order and superconductivity in underdoped Ba1-xKxFe2As2. Nature Comm. 5, 3711 (2014)

Yang, S.-L. et al. Superconducting graphene sheets in CaC6 enabled by phonon-mediated interband interactions. Nature Comm. 5, 3493 (2014)

Liu, Z. K. et al. Discovery of a Three-Dimensional Topological Dirac Semimetal, Na3Bi. Science 343, 864 (2014)

Vishik, I. M. et al. Angle-resolved photoemission spectroscopy study of HgBa2CuO4+δ. Phys. Rev. B 89, 195141 (2014)

Hashimoto, M. et al. Direct observation of bulk charge modulations in optimally doped Bi1.5Pb0.6Sr1.54CaCu2O8+δ. Phys. Rev. B 89, 220511(R) (2014)

Staub, U. et al. Persistence of magnetic order in a highly excited Cu2+ state in CuO. Phys. Rev. B 89, 220401(R) (2014)

Suzuki, H. et al. Strongly three-dimensional electronic structure and Fermi surfaces of
SrFe2(As0.65P0.35)2: Comparison with BaFe2(As1-xPx)2. Phys. Rev. B 89, 184513 (2014)


Ideta, S. et al. Electronic structure of BaNi2P2 observed by angle-resolved photoemission spectroscopy. Phys. Rev. B 89, 195138 (2014)

Yang, Y. L. et al. Shielded piezoresistive cantilever probes for nanoscale topography and electrical imaging. J. Micromech. Microeng. 24, 045026 (2014)

Zhang, Y. et al. Direct observation of the transition from indirect to direct bandgap in atomically thin epitaxial MoSe2. Nature Nano. 9, 111 (2014)

Lee, J. J. et al. Charge-orbital-lattice coupling effects in the dd excitation profile of one-dimensional cuprates. Phys. Rev. B 89, 041104(R) (2014)