Unconventional Superconductivity: From History to Mystery
Date : October 13, 2016 16:00 ~ 17:30
Speaker : Prof. Laura H. Greene (Florida State University )
Location : Bldg. 19, Rm. 210
The nearly 80-year-old correlated electron problem
remains largely unsolved; with one stunning success being BCS electron-phonon
mediated
“
conventional
”
superconductivity. There are
dozens of families of superconductors that are
“
unconventional
”
including the high-Tc cuprate, iron-based, and heavy fermion
superconductors. Although these materials are disparate in many properties,
some of their fundamental properties are strikingly similar, including their
ubiquitous phase diagram in which the superconductivity emerges near a magnetic
phase transition and some very strange electronic phases that arise in the
non-superconducting states. A recent research direction is towards the
fundamental understanding of these phases in the hopes to predictively design
higher-Tc, Jc, and practical new superconductors.