CE-type antiferromagnetic ordering and martensitic transition in Pr-substituted La0.65Ca0.35MnO3 from magnetic and neutron diffraction studies

被引：8
|
作者：
Taran, Subhrangsu
Chaudhuri, B. K.
Das, A.
Nigam, A. K.
Kremer, R. K.
Chatterjee, Sandip [1 ]
机构：
[1] Indian Assoc Cultivat Sci, Dept Solid State Phys, Kolkata 700032, W Bengal, India
[2] Bhabha Atom Res Ctr, Div Solid State Phys, Bombay 400085, Maharashtra, India
[3] Tata Inst Fundamental Res, Dept CMP & MS, Bombay 400005, Maharashtra, India
[4] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany
[5] Govt Coll Engn & Textile Technol, Dept Phys, Hooghly 712201, W Bengal, India
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2007年 / 19卷 / 21期
关键词：
D O I：
10.1088/0953-8984/19/21/216217
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Mixed ferromagnetic ( FM) and antiferromagnetic ( AFM: A-type and CE-type) phases and anomalous lattice parameters have been observed around 50 K in ( La1-yPry) 0.65Ca0.35MnO3 ( y = 0.5-0.65) from neutron diffraction studies. The critical magnetic field is profoundly increased by Pr doping. Field-dependent and temperature-dependent magnetization M( H, T) and the hysteresis behaviour of resistivity indicate the presence of magnetostriction and mixed magnetic phases. The step-like behaviour of M( H) data around 5 K is attributed to the martensitic transition, which is found to be related to the CE-type AFM phase in the system.
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页数：8
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