Thin Film Nickelates : A New Frontier for High-Temperature Superconductivity | ICMAB Seminar

By Kyle Shen, Cornell University
Abstract
Superconductivity plays a key role in many next-generation technologies, including quantum computing and sensing. The promise of discovering new superconductors with higher transition temperatures has been at the forefront of research in condensed matter physics, materials science, and solid state chemistry for the past 4 decades. From the high-temperature cuprate superconductors of the 1990s, to the iron-based superconductors of the 2010s, significant attention has now been directed in the past few years to the nickelate families of superconductors, particularly the so-called “infinite layer” nickelates as well as the recently discovered bilayer nickelate, La3Ni2O7.
In this seminar, I will describe recent advances in the study of the infinite-layer and bilayer nickelate superconductors. I will highlight new thin film synthesis approaches developed by our research group, and how this enables investigations of superconductivity and the phase diagram of both these families.
Short bio
Kyle Shen is the James A. Weeks Professor of Physical Sciences at Cornell University, and the Director of Cornell’s Laboratory of Atomic and Solid State Physics. He was a visiting scientist with the MULFOX group at ICMAB from 2022-2023. He received his B.Sc. degrees in Physics and Electrical Engineering and Computer Science from M.I.T., and a M.S. and Ph.D. in Applied Physics from Stanford University, and a NSERC and Killam Postdoctoral Fellow at the University of British Columbia. His research interests lie in the area of creating and controlling emergent phenomena at artificial interfaces and superlattices, interfacial and high-Tc superconductivity, utilizing techniques such as angle-resolved photoemission spectroscopy (ARPES), molecular beam epitaxy (MBE), x-ray absorption spectroscopy (XAS), and resonant x-ray scattering (RXS).
He received the Presidential Early Career Award for Scientists and Engineers, a Stephen H. Weiss Presidential Fellowship, the Office of Naval Research Young Investigator Award, the Air Force Office of Scientific Research Young Investigator Award, the Research Corporation Cottrell Scholars Award, an NSF CAREER Award, an APS Fellow, and an National Academy of Sciences Kavli Frontiers Fellow.
Hosted by Gervasi Herranz, ICMAB-CSIC
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