Study of structure and magnetic properties of the perovskite Tb0.5Sr0.5CoO3

被引:6
作者
Srikiran, JS [1 ]
Yusuf, SM [1 ]
机构
[1] Bhabha Atom Res Ctr, Div Solid State Phys, Bombay 400085, Maharashtra, India
关键词
perovskite; DC magnetization; powder neutron diffraction;
D O I
10.1016/j.jallcom.2004.08.030
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
The perovskite compound Tb0.5Sr0.5CoO3 has been prepared and studied for the first time. We report here the structural and magnetic properties of the compound using the DC magnetization and powder neutron diffraction techniques. The compound is found to be orthorhombic with Pbnm space group. The magnetic ground state of the system is ferromagnetic with T-c = 120 K. The ordered magnetic moment is found to be 1.57 (4) mu(B)/CO ion at 12 K along the crystallographic b-axis. The observed effective paramagnetic moment mu(eff) = 2.54 mu(B)/f.u. The role of ionic size effect on the magnetic and transport properties of the compound through the variation of Co-O-Co bond angles is highlighted. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:26 / 30
页数:5
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