MAGNETIC EXCITATIONS IN THE T-J MODEL - APPLICATION TO NEUTRON AND NMR EXPERIMENTS IN HIGH-TC MATERIALS

被引：27

作者：

GREMPEL, DR

LAVAGNA, M

机构：

[1] Centre d'Etudes Nucléaires de Grenoble, DRFMC-MDN, F-38041 Grenoble Cedex

来源：

SOLID STATE COMMUNICATIONS | 1992年 / 83卷 / 08期

关键词：

D O I：

10.1016/0038-1098(92)90658-V

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We study the dynamic magnetic susceptibility of the two-dimensional t - J model using a mean-field bond slave boson approach coupled to self-consistent spin-fluctuation theory. The spectrum of the magnetic fluctuation exhibits interesting temperature dependence that is a consequence of lattice effects. We apply our results to the interpretation of recent neutron and NMR measurements on YBa2Cu3O6+x systems. Our predictions for the temperature dependence of the nuclear spin relaxation rate are in good agreement with experiment.

引用

页码：595 / 599

页数：5

共 18 条

[1]

BERTHIER C, 1991, IN PRESS PHYSICA C

[2]

BULUT N, PREPRINT

[3] MAGNETIC FLUCTUATIONS IN LA1.95BA0.05CUO4 [J].