Chromium sublattice magnetic ordering in a compound of the ThCr2Si2 type structure:: HoCr2Si2

被引：8
作者：
Moze, O
Hofmann, M
Buschow, KHJ
机构：
[1] Univ Modena & Reggio Emilia, Dipartimento Fis, Unita Modena, INFM, I-41100 Modena, Italy
[2] Hahn Meitner Inst, Berlin Neutron Scattering Ctr, D-14109 Berlin, Germany
[3] Univ Amsterdam, Van Der Waals Zeeman Inst, NL-1018 Amsterdam, Netherlands
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2000年 / 308卷
关键词：
magnetic neutron powder diffraction; magnetic structure; RCr2Si2 intermetallic compounds;
D O I：
10.1016/S0925-8388(00)00985-3
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：
A neutron diffraction investigation of the intermetallic compound HoCr2Si2 has been carried out over the temperature range 1.7-470 K. The data clearly demonstrate that the Cr sublattice in this compound is ordered for the whole range of temperatures investigated. Chromium atoms at 4d sites are aligned anti-parallel along the c axis. The refined value of the ordered Cr moment is 1.48(4) mu(B), at 293 K and 1.60(4) mu(B) at 25 K The magnetic space group is 14'/m 'm 'm, with G(z)(-) Mn magnetic modes at 4d sites. The Ho and Cr sublattices order independently, with Ho moments at 2a sites ordering below 1.7 K. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：60 / 63
页数：4
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