Spin, charge, and orbital ordering in La0.5Sr1.5MnO4

被引：62

作者：

Mahadevan, P

Terakura, K

Sarma, DD

机构：

[1] JRCAT, Tsukuba, Ibaraki 3050046, Japan

[2] AIST, Tsukuba, Ibaraki 3050046, Japan

[3] JRCAT, Tsukuba, Ibaraki 3058562, Japan

[4] RICS, AIST, Tsukuba, Ibaraki 3058568, Japan

[5] Indian Inst Sci, SSCU, Bangalore 560012, Karnataka, India

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.87.066404

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have analyzed the experimental evidence of charge and orbital ordering in La0.5Sr1.5MnO4 using first principles band structure calculations. Our results suggest the presence of two types of Mn sites in the system. One of the Mn sites behaves as an Mn3+ ion, favoring a Jahn-Teller distortion of the surrounding oxygen atoms, while the distortion around the other is not a simple breathing mode kind. Band structure effects are found to dominate the experimental spectrum for orbital and charge ordering, providing an alternate explanation for the experimentally observed results.

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页码：66404 / 1

页数：4

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