Vertex corrections for dynamical spin susceptibility of the Hubbard model and comparison with neutron scattering on YBa2Cu3O6+x

被引：5

作者：

Dahm, T ^{[1
]}

Tewordt, L ^{[1
]}

机构：

[1] UNIV HAMBURG,ABT THEORET FESTKORPERPHYS,D-20355 HAMBURG,GERMANY

来源：

PHYSICA C | 1996年 / 265卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(96)00241-9

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The vertex corrections of the dynamical spin susceptibility are calculated for a Hubbard model with intermediate coupling strength (U/t = 7) and a Fermi surface approximating that of YBa2Cu3O7. The resulting q-dispersion of the coupling J(q) yields below T-c for d(x)2(-y)2-wave pairing a resonant-like peak in the spectral neutron scattering weight in qualitative agreement with experiments on YBa2Cu3O6+x.

引用

页码：67 / 72

页数：6

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