ELECTRONIC-STRUCTURE OF HIGH-TC SUPERCONDUCTORS

被引：16

作者：

FLAMBAUM, VV

SUSHKOV, OP

机构：

[1] Institute of Nuclear Physics, Novosibirsk

来源：

PHYSICA C | 1991年 / 175卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(91)90608-2

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The band structure of doped high-T(c) superconductors (La(2-x)Sr(x)CuO4, etc.) is calculated. The mobile hole is considered in a ferromagnetic background of localized spins. Strong electron-electron Coulomb interaction as well as strong coupling with the excitons play an important role in the band formation. The charged quasiparticle in the x2-y2 band has spin S = 0 with a small admixture of S = 1 state. Close to the lowest x2-y2 band there is a z2 band (DELTA-E less-than-or-equal-to 1 eV) with S = 1/2 quasiparticle. Dependence of the frequency of the Cu nuclear quadrupole resonance (NQR) on x is considered.

引用

收藏

页码：347 / 356

页数：10

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