THE RESONATING VALENCE-BOND STATE AND HIGH-T(C) SUPERCONDUCTIVITY - AMEAN-FIELD THEORY (REPRINTED FROM SOLID-STATE COMMUN, VOL 63, PG 973-976, 1987)

Authors
BASKARAN G ZOU Z ANDERSON PW
Citation
G. Baskaran et al., THE RESONATING VALENCE-BOND STATE AND HIGH-T(C) SUPERCONDUCTIVITY - AMEAN-FIELD THEORY (REPRINTED FROM SOLID-STATE COMMUN, VOL 63, PG 973-976, 1987), Solid state communications, 88(11-12), 1993, pp. 853-856
Citations number
25
Categorie Soggetti
Physics, Condensed Matter
Journal title
Solid state communications → ACNP
ISSN journal
00381098
Volume
88
Issue
11-12
Year of publication
1993
Pages
853 - 856
Database
ISI
SICI code
0038-1098(1993)88:11-12<853:TRVSAH>2.0.ZU;2-9
Abstract
A mean field type theory is developed for the insulating RVB state and high temperature superconductivity in doped La2CuO4 and other high-T( c) oxides. The T(c) as a function of the doping parameter delta drops sharply around t/U is similar to delta. The zero temperature gap versu s T(c) relation depends sensitively on the choice of the parameters. G utzwiller projection, suppression of T(c) by phase fluctuations for sm all delta and screening effects are briefly discussed.