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
收藏
页码：16658 / 16664
页数：7
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