B. Barbiellini et al., THE EFFECT OF FERMI-SURFACE GEOMETRY ON THE SUPERCONDUCTIVITY GIVEN BY SPIN FLUCTUATIONS IN LA2-XSRXCUO4, Helvetica Physica Acta, 66(4), 1993, pp. 409-410
Superconductivity due to the spin fluctuation mechanism of Moriya et a
l 1! and Monthoux et al 2! is treated for a realistic Fermi Surface
(FS) of La2-xSrxCuO4, obtained from self-consistent LMTO band structur
e calculations. For the coupling, a strongly peaked susceptibility aro
und the Brillouin zone corner is used. We find that the Fermi surface
shape can influence significantly the T(c) and that the most favorable
case is obtained by doping with divalent Sr around x = 0.15.