Formation of Nanosize Griffiths-like Clusters in Solid Solution of Ferromagnetic Manganite and Cobaltite

被引：38

作者：

Bhoi, D. ^{[1
]}

Khan, N. ^{[1
]}

Midya, A. ^{[1
]}

Nandi, M. ^{[1
]}

Hassen, A. ^{[1
,3
]}

Choudhury, P. ^{[2
]}

Mandal, P. ^{[1
]}

机构：

[1] Saha Inst Nucl Phys, Kolkata 700064, W Bengal, India

[2] Cent Glass & Ceram Res Inst, Kolkata 700032, W Bengal, India

[3] Fayoum Univ, Dept Phys, Fac Sci, Al Fayyum 63514, Egypt

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2013年 / 117卷 / 32期

关键词：

FERMI-LIQUID BEHAVIOR; MAGNETIC-PROPERTIES; TRANSITION; ELECTRON; SINGULARITY; PHASE;

D O I：

10.1021/jp402726f

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report the existence of a Griffiths-like phase over a wide range of x due to the formation of nanosize ferromagnetic clusters in La0.6Sr0.4Mn1-xCoxO3, the solid solution of ferromagnetic La0.6Sr0.4MnO3 and La0.6Sr0.4CoO3, from the magnetization measurements. In the studied compound, this phase arises due to the quenching of randomly distributed Co-O-Mn antiferromagnetic bonds in the ferromagnetic background. In contrary to the divalent alkaline-earth-doped manganites, the Griffiths-like phase in La0.6Sr0.4Mn1-xCoxO3 can exist entirely in the metallic state above T-c (for x < 0.10). Based on the present study, a magnetoelectronic phase diagram is drawn.

引用

页码：16658 / 16664

页数：7

共 45 条

[1]

[Anonymous], 2002, Nanoscale Phase Separation and Colossal Magnetoresistance: the physics of manganites and related compounds

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