Optical investigations of La7/8Sr1/8MnO3

被引：37

作者：

Jung, JH ^{[1
]}

Kim, KH

Lee, HJ

Ahn, JS

Hur, NJ

Noh, TW

Kim, MS

Park, JG

机构：

[1] Seoul Natl Univ, Dept Phys, Seoul 151742, South Korea

[2] Inha Univ, Dept Phys, Inchon 402751, South Korea

[3] LG Corp Inst Technol, Seoul 137742, South Korea

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.59.3793

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigated temperature-dependent optical conductivity spectra of La7/8Sr1/8MnO3. Its phonon bending mode starts to be splitted near a structural phase-transition temperature. With further cooling, the strength of a midinfrared small polaron peak, which is located at 0.4 eV, becomes increased. These temperature-dependent changes in the phonon spectra and the polaron absorption peaks were explained by a phase separation and a percolation-type transition. [S0163-1829(99)06105-6].

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页码：3793 / 3797

页数：5

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