Temperature evolution of the 1.5-eV absorption band in doped manganites: Formation of Jahn-Teller clusters

被引：23

作者：

Machida, A ^{[1
]}

Moritomo, Y

Nakamura, A

机构：

[1] Nagoya Univ, Dept Crystalline Mat Sci, Nagoya, Aichi 4648603, Japan

[2] Nagoya Univ, CIRSE, Nagoya, Aichi 4648603, Japan

[3] JST, PRESTO, Chiyoda Ku, Tokyo 102, Japan

来源：

PHYSICAL REVIEW B | 1998年 / 58卷 / 19期

关键词：

D O I：

10.1103/PhysRevB.58.12540

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A systematic investigation of the absorption spectra of thin films of doped manganites has revealed an anomalous temperature variation of the similar to 1.5-eV absorption band. On approaching the insulator-metal transition temperature T-C from the high-temperature side, the band increases in intensity and then merges into the Drude-like band in the ferromagnetic metallic state. We have interpreted the temperature variation in terms of formation and disappearance of Jahn-Teller clusters. [S0163-1829(98)02943-9].

引用

页码：12540 / 12542

页数：3

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