DOUBLE-LAYER HUBBARD-MODEL - OFF-DIAGONAL LONG-RANGE ORDER IN THE NODELESS D-WAVE CHANNEL

Authors
MORGENSTERN I HUSSLEIN T SINGER JM MATUTTIS HG
Citation
I. Morgenstern et al., DOUBLE-LAYER HUBBARD-MODEL - OFF-DIAGONAL LONG-RANGE ORDER IN THE NODELESS D-WAVE CHANNEL, Journal de physique. I, 3(4), 1993, pp. 1043-1051
Citations number
27
Categorie Soggetti
Physics
Journal title
Journal de physique. I → ACNP
ISSN journal
11554304
Volume
3
Issue
4
Year of publication
1993
Pages
1043 - 1051
Database
ISI
SICI code
1155-4304(1993)3:4<1043:DH-OLO>2.0.ZU;2-1
Abstract
We report on a numerical study of the double layer Hubbard model descr ibing the CuO2 sheets in the high-T(c) oxides. For the simulation we e mployed the projector quantum Monte Carlo method (PQMC) to study the g round state properties of this correlated electron system. Our results provide evidence for off-diagonal long range order in the nodeless d- wave channel. The implications with respect to possible mechanisms for high-T(c) superconductivity in oxides in combination which phononic b ooster mechanisms are discussed.