Low-temperature neutron diffraction study of La1-xNd,CrO3 (x=0.05, 0.1, 0.2 and 0.25)

被引:9
|
作者
Chakraborty, KR
Das, A
Yusuf, SM
Krishna, PSR
Tyagi, AK [1 ]
机构
[1] Bhabha Atom Res Ctr, Div Appl Chem, Bombay 400085, Maharashtra, India
[2] Bhabha Atom Res Ctr, Div Solid State Phys, Bombay 400085, Maharashtra, India
关键词
antiferromagnetic ordering; neutron diffraction;
D O I
10.1016/j.jmmm.2005.06.011
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Low-temperature neutron diffraction measurements have been carried out on the La1-xNdxCrO3 (x = 0.05, 0.1, 0.2 and 0.25) compounds, which are ail orthorhombic perovskites (space group Pbnm), in order to elucidate their magnetic structures. Thermal evolution of magnetic structure using Rietveld analysis showed that they all had a G-type antiferromagnetic alignment of spins at all temperatures below their respective Neel temperatures, between Cr3+ ions and with moments close to the free Cr3+ ionic moment at the lowest measured temperature. There was no indication of Nd3+ moment ordering down to 12 K. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:74 / 78
页数:5
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