A high-field magnetization study of a Nd2Fe14Si3 single crystal

被引：9

作者：

Andreev, A. V. ^{[1
,2
]}

Yoshii, S. ^{[3
]}

Kuz'min, M. D. ^{[4
]}

de Boer, F. R. ^{[1
,2
,3
,5
]}

Kindo, K. ^{[6
]}

Hagiwara, M. ^{[3
]}

机构：

[1] Acad Sci Czech Republic, Inst Phys, Joint Lab Magnet Studies, Prague 18221 8, Czech Republic

[2] Charles Univ Prague, Dept Condensed Matter Phys, Prague 12116 2, Czech Republic

[3] Osaka Univ, KYOKUGEN, Osaka 5608531, Japan

[4] Leibniz Inst Festkorper & Werkstoffforsch, D-01171 Dresden, Germany

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

[6] Univ Tokyo, ISSP, Chiba 2778581, Japan

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2009年 / 21卷 / 14期

关键词：

MAGNETISM; R=Y; HO; SM; DY; ER; ND;

D O I：

10.1088/0953-8984/21/14/146005

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Magnetization study of a single crystal of Nd2Fe14Si3 (with the rhombohedral Th2Zn17-type structure) reveals that the compound is a ferromagnet with a spontaneous magnetic moment of 32.3 mu(B) per formula unit (at T = 2 K) and a Curie temperature equal to 495 K. The easy-magnetization direction lies close to the b-axis, tilting slightly towards the c-axis. (The b-axis [120] is not a high-symmetry direction in the crystallographic class D-3d.) The observed strong magnetic anisotropy is attributed almost entirely to the Nd sublattice, as concluded from comparison with a Y2Fe14Si3 single crystal. A magnetic field applied along the c-axis induces a first-order spin reorientation transition at BFOMP = 20 T. In the process of magnetization the Nd and Fe sublattices behave as essentially non-collinear. This is manifest particularly in the downward curvature of the first (pre-FOMP) stage of the magnetization curve. It is proposed to regard this curvature as a validity criterion for the single-sublattice approximation.

引用

页数：8

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