Surendra B. Anantharaman, Joachim Kohlbrecher, et al.
MRS Fall Meeting 2020
We present an exact identity between the on-site and the extended s-wave pairing amplitudes in the Hubbard model. We prove that the extended s-wave pairing amplitude vanishes identically at half filling for both signs of U. Away from half filling, the existence of an on-site s-wave pairing is a necessary and sufficient condition for the existence of an extended s-wave pairing. This result gives rise to constraints on the possible symmetries of the superconducting gap in the Hubbard model. © 1990 The American Physical Society.
Surendra B. Anantharaman, Joachim Kohlbrecher, et al.
MRS Fall Meeting 2020
Andreas C. Cangellaris, Karen M. Coperich, et al.
EMC 2001
Arvind Kumar, Jeffrey J. Welser, et al.
MRS Spring 2000
J.K. Gimzewski, T.A. Jung, et al.
Surface Science