Observation of a Griffiths phase in paramagnetic La1-xSrxMnO3 -: art. no. 257202

被引：322

作者：

Deisenhofer, J ^{[1
]}

Braak, D

von Nidda, HAK

Hemberger, J

Eremina, RM

Ivanshin, VA

Balbashov, AM

Jug, G

Loidl, A

Kimura, T

Tokura, Y

机构：

[1] Univ Augsburg, EP V, Ctr Elect Correlat & Magnetism, D-86135 Augsburg, Germany

[2] Univ Augsburg, Inst Phys, D-86135 Augsburg, Germany

[3] EK Zavoisky Phys Tech Inst, Kazan 420029, Russia

[4] Kazan VI Lenin State Univ, Kazan 420008, Russia

[5] Moscow Power Engn Inst, Moscow 105835, Russia

[6] Univ Insubria, Dipartimento Fis & Matemat, I-22100 Como, Italy

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

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.95.257202

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the discovery of a novel triangular phase regime in the system La1-xSrxMnO3 by means of electron spin resonance and magnetic susceptibility measurements. This phase is characterized by the coexistence of ferromagnetic entities within the globally paramagnetic phase far above the magnetic ordering temperature. The nature of this phase can be understood in terms of Griffiths singularities arising due to the presence of correlated quenched disorder in the orthorhombic phase.

引用

页数：4

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