Nickel Age of High-temperature Superconductivity
Guest Speaker：Dr. S. Lin Er Chow，National University of Singapore，Singapore
Inviter: Prof.Qing Dai
Date&Time: Wednesday, 18 June, 10:00-11:30
Venue: Yiucheng Lecture Hall (500), Xu Zuyao Building
Biography:
Dr. S. Lin Er Chow is currently a Research Fellow at the Department of Physics, National University of Singapore. As a Presidential Graduate Fellow, he is the youngest winner of the Best Graduate Researcher Award in 2022 during his Ph.D. at the National University of Singapore. He received the Highest Distinction (Honours) for both of his B.Sc. and B.Eng. degrees and was a Physics Olympian. His works include the design and discovery of high-temperature superconductivity in infinite-layer nickel oxides at ambient pressure, that puts Singapore at the forefront of high-temperature superconductivity research. His present research directions focus on the theoretical understanding, experimental investigation, and synthesis of high-temperature superconducting oxides. He is an invited speaker at multiple international conferences including the European Conference on Applied Superconductivity (EUCAS) and the International Workshop On High-Tc Nickel Oxide Superconductors.
Abstract:
Nearly four decades ago, the discovery of superconductivity above 30 K in the copper-oxide compound Ba-La-Cu-O shattered the previously conceived limit of superconducting transition temperature (Tc) within the conventional Bardeen– Cooper– Schrieffer (BCS) theory. This breakthrough— high-Temperature (high- Tc) superconductivity in oxide-based compounds— was celebrated by the1987 , and sparked an era of intense research excitement, famously remembered as the ‘ . Since then, a wide variety of -electron oxide-based layered materials— including Ti-, Bi-, Ru-, Co-, and Ni-based oxides— have been explored in the search for new high- c superconductors beyond those of copper-based. Despite decades of effort, copper remained as the unique and necessary ingredient for high- Tc superconducting oxides, until recently.