Uniaxial antiferromagnetic ordering in HoFe2Ge2:: a neutron and magnetic study

被引：4

作者：

Schobinger-Papamantellos, P ^{[1
]}

Rodriguez-Carvajal, J

Hagmusa, IH

Duong, NP

Buschow, KHJ

机构：

[1] ETH Zurich, Lab Kristallog, CH-8092 Zurich, Switzerland

[2] CEA CNRS, Lab Leon Brillouin, F-91191 Gif Sur Yvette, France

[3] Univ Amsterdam, Van der Waals Zeeman Inst, NL-1018 XE Amsterdam, Netherlands

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1999年 / 284卷 / 1-2期

关键词：

rare earth iron germanides; magnetic properties; magnetic structure; neutron diffraction; specific heat anomaly;

D O I：

10.1016/S0925-8388(98)00914-1

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 the compound HoFe2Ge2 (I4/mmm S.G) has been studied by neutron diffraction, magnetic and specific-heat measurements. The paramagnetic neutron data confirmed the ThCr2Si2 type of structure reported earlier for this compound. The analysis of the data collected in the magnetically ordered regime (T-N = 17 K) showed a uniaxial arrangement of the Ho moments along c associated with the wave vector q = (1/2,1/2,0). The moments of the atoms related by the non-primitive translation (1/2,1/2,1/2) are antiparallel. The refined moment value at 1.5 K is mu(Ho)=6.6(1) mu(B). In addition to the ordered phase the neutron data comprise diffuse magnetic peaks in the low-angle region demonstrating the coexistence of short-range order effects below 6 K. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：42 / 46

页数：5

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