Condensed Matter Physics Seminar
2 p.m., Thursday, October 2, 2003
Room 1201, Physics Building
The Hot Spots and Transition from d-Wave to Another Pairing Symmetry in
the Electron-Doped Cuprate Superconductors
Victor M. Yakovenko
(University of Maryland)
Abstract: We present a simple theoretical scenario for a transition
from d-wave to another superconducting pairing observed in the electron-doped
cuprates. The d-wave pairing potential Delta, which has the maximal magnitude
and opposite signs at the hot spots on the Fermi surface, becomes suppressed
with the increase of electron doping, because the hot spots approach the
Brillouin zone diagonals, where Delta vanishes. Then, the d-wave pairing is
replaced by either singlet s-wave or triplet p-wave pairing. We argue in favor
of the latter and propose experiments to uncover it.Reference: V. A. Khodel,
V. M. Yakovenko, M. V. Zverev, and Haeyong Kang, cond-mat/0307454
-
Host: Fuhrer
Back to Condensed Matter Physics Seminar Home
Page