1st Hokudai pure and applied physics salon
title
“Superconductivity in the vicinity of quantum critical point”
speaker
Yoshihiko IHARA
room
2nd building 409
time
June10th 17:00
abstract
L. N. Cooper found that the Fermi surface is destabilized by an infinitely small interaction if it is attractive. For electrons in solids, however, a secret trick is required to induce the attractive interactions out of Coulomb repulsion, and eventually to cause superconductivity.
In these years, numbers of intriguing superconductors are found in the vicinity of the “quantum critical point”, where quantum fluctuations rather than thermal ones govern the physical properties. In this salon, I will review some of the new members of superconductors, and examine the quantum fluctuations as the driving force for superconductivity.