Magnetic structures of RNixSn2 (R=Tb, Ho) compounds

被引：16

作者：

Gil, A

Penc, B

Baran, S

Hernandez-Velasco, J

Szytula, A

Zygmunt, A

机构：

[1] Jagiellonian Univ, M Smoluchowski Inst Phys, PL-30059 Krakow, Poland

[2] Pedag Univ, Dept Math & Nat Sci, PL-42800 Czestochowa, Poland

[3] Hahn Meitner Inst Berlin GmbH, Berlin Neutron Scattering Ctr, D-14109 Berlin, Germany

[4] W Trzebiatowski Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2003年 / 361卷 / 1-2期

关键词：

rare earth compounds; transition metal compounds; magnetically ordered compounds; neutron diffraction; magnetic measurements;

D O I：

10.1016/S0925-8388(03)00410-9

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 magnetic structure of 1:1:2 stannides, determined on the basis of powder neutron diffraction data, is reported. The RNixSn2 (R=Tb, Ho) compounds crystallize in the orthorhombic CeNiSi2-type structure. Magnetic and neutron diffraction measurements show that both compounds are antiferromagnets with Neel temperatures of 17.4 K for R=Tb and 6.6 K for R=Ho. The neutron diffraction data indicate the presence of collinear magnetic structures described by the propagation vector k = (0,0,(1)/(2)) for R = Tb and k = ((1)/(2),(1)/(2),0) for R=Ho. The determined magnetic structures of RNixSn2 are compared with those observed in RNiSn, and the isostructural silicides and germanides. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：32 / 35

页数：4

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