Spin, charge, and orbital ordering in Mn perovskite oxides studied by model Hartree-Fock calculations

被引：114

作者：

Mizokawa, T

Fujimori, A

机构：

[1] Department of Physics, University of Tokyo, Tokyo 113, Bunkyo-ku

来源：

PHYSICAL REVIEW B | 1997年 / 56卷 / 02期

关键词：

D O I：

10.1103/PhysRevB.56.R493

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The spin, charge, and orbital ordering in R(0.5)A(0.5)MnO(3) and R(0.5)A(1.5)MnO(4) (R=rare earth, A=Sr, Ca) has been studied by means of unrestricted Hartree-Fock calculations on the multiband p-d model. Since the superexchange interaction between the Mn3+ and Mn4+ sites depends on which type of e(g) orbital is occupied at the Mn3+ site, antiferromagnetic states such as A type and CE type favor a specific orbital ordering. It is shown that the Jahn-Teller distortion consistent with the orbital ordering plays an essential role in stabilizing the experimentally observed antiferromagnetic states.

引用

页码：R493 / R496

页数：4

共 20 条

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