Charge ordering and polaron formation in the magnetoresistive oxide La0.7Ca0.3MnO3

被引：221

作者：

Adams, CP ^{[1
]}

Lynn, JW

Mukovskii, YM

Arsenov, AA

Shulyatev, DA

机构：

[1] Natl Inst Stand & Technol, Ctr Neutron Res, Gaithersburg, MD 20899 USA

[2] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

[3] Moscow Steel & Alloys Inst, Moscow 117936, Russia

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 18期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.85.3954

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Neutron scattering has been used to study the nature of the ferromagnetic transition in a single crystal of the perovskite La0.7Ca0.3MnO3. Diffuse scattering from lattice polarons develops as the Curie temperature is approached from below, along with short range polaron correlations that are consistent with stripe formation. Both the scattering due to the polaron correlations and the anomalous quasielastic component in the magnetic fluctuation spectrum maximize very close to Tc, in a manner remarkably similar to the resistivity, indicating that they have a common origin.

引用

页码：3954 / 3957

页数：4

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