Mossbauer study of 57Fe-doped La0.5Ca0.5MnO3

被引：31

作者：

Kallias, G ^{[1
]}

Pissas, M ^{[1
]}

Devlin, E ^{[1
]}

Simopoulos, A ^{[1
]}

Niarchos, D ^{[1
]}

机构：

[1] Natl Ctr Sci Res Demokritos, Inst Mat Sci, Athens 15310, Greece

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 02期

关键词：

D O I：

10.1103/PhysRevB.59.1272

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The first order antiferromagnet (AFM) to ferromagnet (FM) transition observed in La0.5Ca0.5MnO3 compound has been studied, both macroscopically and microscopically, by magnetization and Fe-57 Mossbauer measurements. The Mossbauer spectra reveal that Fe substitutes for Mn3+ as Fe3+ (S= 5/2). The zero-field-cooled and field-cooled Mossbauer spectra for the same field are completely different and can be fitted by predominantly AFM and FM components, respectively, in agreement with the magnetization data. In general, our data can be explained in the framework of a first-order, field-induced transition. [S0163-1829(99)09201-2].

引用

页码：1272 / 1276

页数：5

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