Ying Liu
Join us on March 27 at 2:30pm in White Hall G09 for a colloquium presented by Ying Liu, professor of physics at Pennsylvania State University. He will speak on Odd-parity, spin-triplet superconductivity in SR₂RuO₄ and UTe₂. Continue reading for his abstract and biography.Abstract
A hallmark of unconventional superconductivity, which is associated with the symmetry properties of the superconducting order parameter, is the non-s-wave pairing. In this talk I will discuss the pairing symmetry properties of two unconventional superconductors, Sr2RuO4 and UTe2. The former is the only layered perovskite superconductor without the presence of Cu and one that has been studied for many years. The latter is a newly discovered heavy fermion superconductor. Both are promising candidates for demonstrating odd-party, spin-triplet superconductivity. I will review the evidence for unconventional pairing found in Sr2RuO4 and UTe2 and discuss our work on determining the symmetry properties of these two superconductors, focusing on evidence obtained from the phase-sensitive experiments based on the Josephson effect.
Biography
Ying Liu is professor of physics at Pennsylvania State University. He received his BS degree from Peking University in 1982, MS degree at Institute of Physics, CAS in 1984 and Ph. D. degree from University of Minnesota in 1991. He joined the faculty of Penn State in 1994, becoming a tenured full professor in 2005. Professor Liu was recognized with an NSF Career Award in 1997 and American Physical Society fellowship in 2006.