X-ray diffuse scattering due to polarons in a colossal magnetoresistive manganite

被引：104

作者：

Shimomura, S

Wakabayashi, N

Kuwahara, H

Tokura, Y

机构：

[1] Keio Univ, Fac Sci & Technol, Dept Phys, Kohoku Ku, Yokohama, Kanagawa 2238522, Japan

[2] Joint Res Ctr Atom Technol, Tsukuba, Ibaraki 3058562, Japan

[3] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.83.4389

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

X-ray scattering study on (Nd0.125Sm0.875)(0.52)Sr0.48MnO3 has revealed the existence of diffuse scattering in the paramagnetic phase. Its intensity increases with decreasing temperature, but it vanishes at the ferromagnetic transition temperature. This result indicates that local lattice distortion arises from the localization of electrons on Mn sites (polarons). The intensity distributions are in agreement with calculations based on polarons associated with the Jahn-Teller distortion. Correlation between the distortion fields seems to be related to the formation of charge ordering.

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页码：4389 / 4392

页数：4

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