CM Seminar - Superconductivity in infinite layer nickelates

07 Jan2021

Speaker: Harold Y. Hwang - Stanford University - SLAC National Accelerator Laboratory

Time: Jan 7, 2021 :: 10:00AM - 11:00AM



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Meeting ID: 641 8301 1430
Passcode: 113399

Since their discovery, superconductivity in cuprates has motivated the search for materials with analogous electronic or atomic structure. We have used soft chemistry approaches to synthesize superconducting infinite layer nickelate thin films from their perovskite precursor phase, using topotactic reactions. We will present the synthesis and transport properties of the nickelates, observation of a doping-dependent superconducting dome in (Nd,Sr)NiO2, and our current understanding of the electronic structure.

Bio: Harold Y. Hwang is a Professor of Applied Physics and Photon Science (SLAC) at Stanford University, and the Director of the Stanford Institute for Materials and Energy Sciences. He received a B.S. in Physics, B.S. and M.S. in Electrical Engineering from MIT (1993), and a Ph.D. in Physics from Princeton University (1997). He was formerly a Member of Technical Staff at Bell Labs (1996-2003) and Professor at the University of Tokyo (2003-2010). His current research focuses on correlated electrons and emergent phenomena at artificial interfaces and in confined systems; atomic-scale synthesis of heterostructures of quantum materials; low-dimensional superconductivity; oxide heterostructures for energy applications; and novel devices based on interface states. Recognitions include the MRS Outstanding Young Investigator Award (2005), the IBM Japan Science Prize (Physics, 2008), Fellowship in the American Physical Society (2011), the Ho-Am Prize (Science, 2013), and the Europhysics Prize (2014, with Jochen Mannhart and Jean

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