A deviation from the Coulomb law for interacting microscopic impurities in a perovskite-like lattice

被引：10

作者：

Prosandeyev, SA

Riabchinski, AI

机构：

[1] Department of Physics, Rostov State University, 344104 Rostov on Don

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1996年 / 8卷 / 05期

关键词：

D O I：

10.1088/0953-8984/8/5/001

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Formulae for calculating the electric field produced by microscopic impurities in perovskite-type oxides have been derived. By way of illustration, dipole and monopole impurities in KTaO3, YBa2Cu3O6 and La2CuO4 were considered. It was found that the lattice polarization leads to a gigantic enhancement of the interaction between dipole impurities that can explain many phenomena in polar lattices.

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页码：505 / 516

页数：12

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