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Crystal structure and magnetic properties of Lu.sub.2./sub.Co.sub.17-x./sub.Si.sub.x./sub. single crystals
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SYSNO ASEP 0343206 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Crystal structure and magnetic properties of Lu2Co17-xSix single crystals Author(s) Tereshina, Evgeniya (FZU-D) RID
Andreev, Alexander V. (FZU-D) RID, ORCIDSource Title Intermetallics. - : Elsevier - ISSN 0966-9795
Roč. 18, č. 4 (2010), s. 641-648Number of pages 8 s. Language eng - English Country GB - United Kingdom Keywords R2Co17 ; single crystals ; magnetic anisotropy ; spin reorientation 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 000276058200036 DOI 10.1016/j.intermet.2009.10.020 Annotation Single crystals of Lu2Co17-xSix within the homogeneity range of Si substitution for Co (0 ≤ x ≤ 3.4) were grown by the Czochralski method. Magnetization measurements have revealed that the parent Lu2Co17 compound has a spin-reorientation transition (SRT) from the easy plane to the easy axis at elevated temperatures which occurs as two second-order phase transitions, the “plane-cone” at TSR1 ≈ 670 K and the “cone-axis” at TSR2 ≈ 730 K. In Lu2Co16Si, the SRTs shift towards lower temperatures (TSR1 ≈ 75 K, TSR2 ≈ 130 K) and disappear for compounds with Si content x > 1 where the anisotropy is uniaxial over the whole range of magnetic ordering. A phenomenological discussion of Co-sublattice anisotropy, with reference to the model of individual site contribution to magnetic anisotropy (ISA) is provided. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2011
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