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A high-field magnetization study of a Nd.sub.2./sub.Fe.sub.14./sub.Si.sub.3./sub. single crystal
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SYSNO ASEP 0330654 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title A high-field magnetization study of a Nd2Fe14Si3 single crystal Title Vysokopolní studium magnetizace monokrystalu Nd2Fe14Si3. Author(s) Andreev, Alexander V. (FZU-D) RID, ORCID
Yoshii, S. (JP)
Kuz'min, M.D. (DE)
de Boer, F.R. (NL)
Kindo, K. (JP)
Hagiwara, M. (JP)Source Title Journal of Physics-Condensed Matter. - : Institute of Physics Publishing - ISSN 0953-8984
Roč. 21, č. 14 (2009), 146005/1-146005/8Number of pages 8 s. Language eng - English Country GB - United Kingdom Keywords magnetization ; Nd2Fe14Si3 Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects GA202/09/0339 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z10100520 - FZU-D (2005-2011) UT WOS 000264316400039 DOI 10.1088/0953-8984/21/14/146005 Annotation Magnetization study of a single crystal of Nd2Fe14Si3 reveals that the compound is a ferromagnet with a spontaneous magnetic moment of 32.3 mB 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 D3d.). 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. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2010
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