INFLUENCE OF ZINC DOPING ON THE NORMAL-STATE PROPERTIES OF COPPER OXIDES

被引：11

作者：

GABAY, M

机构：

[1] Laboratoire de Physique des Solides, Université Paris-Sud

来源：

PHYSICA C | 1994年 / 235卷

关键词：

D O I：

10.1016/0921-4534(94)91893-7

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We describe normal state properties of copper oxides by an effective t-J model where the non double occupancy of the sites resulting from strong correlations is taken into account via a gauge field coupling holons and spinons. We show that zinc doping results in the appearance of an induced magnetic moment on the surrounding copper sites. Taking the magnetic screening of the spinons into account, we compute the magnitude of the moment for various cuprates. We also study the evolution of the moment with hole doping. This moment strongly influences in a detrimental fashion the so-called spin gap phase, and -as a result- the superconducting phase. Our results are quite consistent with transport (resistivity) and magnetic (neutron scattering, NMR) measurements.

引用

页码：1337 / 1338

页数：2

共 20 条

[1] COMPLETE FERMI-SURFACE MAPPING OF BI2SR2CACU2O8+X (001) - COEXISTENCE OF SHORT-RANGE ANTIFERROMAGNETIC CORRELATIONS AND METALLICITY IN THE SAME PHASE [J].