Magnetic study of the ThCr2Si2-type RIr2Si2 (R=Pr,Nd) compounds:: Magnetic structure of NdIr2Si2 from powder neutron diffraction

被引：14
作者：
Welter, R
Halich, K
Malaman, B
机构：
[1] Univ Strasbourg 1, Lab DECMET, UMR 7513, CNRS, F-67070 Strasbourg, France
[2] Univ Nancy 1, Lab Chim Solide Mineral, UMR 7555, CNRS, F-54506 Vandoeuvre Les Nancy, France
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2003年 / 353卷 / 1-2期
关键词：
rare earth compounds; transition metal compounds; magnetically ordered materials; neutron diffraction; magnetic measurements;
D O I：
10.1016/S0925-8388(02)01298-7
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 on synthesis and magnetic characterization of the tetragonal ThCr2Si2-type PrIr2Si2 and NdIr2Si2 compounds. The PrIr2Si2 compound, not yet signaled, orders antiferromagnetically below T-N=47(1) K. The NdIr2Si2 compound orders antiferromagnetically below T-N = 33(1) K. The magnetic structure of NdIr2Si2 consists of ferromagnetic Nd planes antiferromagnetically coupled with the next adjacent Nd plane stacked along the c axis. The results are discussed and compared with those obtained previously on isotypic RT2Si2 compounds (R=Pr-Nd; T=transition metals of groups 7-9). (C) 2002 Elsevier Science B.V. All rights reserved.
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页码：48 / 52
页数：5
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