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Optimization on magnetic anisotropy and magnetostriction in TbxHo0.8-xPr0.2(Fe0.8Co0.2)(1.93) compounds
Liu, X. Y.; Liu, J. J.; Pan, Z. B.; Song, X. H.; Zhang, Z. R.; Du, J.; Ren, W. J.; liujinjun1@nbu.edu.cn
2015
Source PublicationJOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN0304-8853
Volume391Pages:60-64
AbstractThe structure, magnetocrystalline anisotropy compensation, magnetic properties, and magnetostriction of TbxHo0.8-xPr0.2(Fe0.8Co0.2)(1.93) (0 <= x <= 0.30) polycrystalline alloys have been investigated. X-ray diffraction (XRD) analysis shows that all the alloys stabilize in the single Laves phase with a MgCu2-type cubic structure. The lattice parameter, Curie temperature and saturation magnetization monotonically increase with increasing Tb content. The easy magnetization direction (EMD) at room temperature is detected rotating from the < 100 > axis (x <= 0.10) to the < 111 > axis (x >= 0.15), accompanied by a rhombohedral distortion with large spontaneous magnetostriction coefficients lambda(m). The analysis of XRD, [MD and magnetostriction shows that TbxHo0.8-xPr0.2(Fe0.8Co0.2)(1.93) is an anisotropy compensation system, and the critical compensation point is realized around x=0.15, which shifts to the Tb-poor side compared with the Pr-free counterpart. An optimized effect on magnetostriction especially at a relatively low field (lambda(S)similar to 445 ppm, lambda(a)similar to 510 ppm/3 kOe) was obtained in Tb0.15Ho0.65Pr0.2(Fe0.8Co0.2)(1.93) compound, which is much larger than that of the Pr-free counterpart Tb0.15Ho0.85(Fe0.8Co0.2)(1.93) (lambda(S)similar to 300 ppm) and the Tb0.15Ho0.85Fe2 (lambda(S)similar to 325 ppm), due to the 20 at% Pr introduction. Low content of heavy rare earth Tb, low anisotropy, high saturation magnetostriction and large low-field magnetostriction are obtained in Tb0.15Ho0.65Pr0.2(Fe0.8Co0.2)(1.93) compound, which may make it a promising magnetostrictive material. (C) 2015 Elsevier B.V. All rights reserved.
description.department[liu, x. y. ; liu, j. j. ; pan, z. b. ; song, x. h. ; zhang, z. r.] ningbo univ, fac chem engn & mat sci, ningbo 315211, zhejiang, peoples r china ; [du, j.] chinese acad sci, ningbo inst mat technol & engn, ningbo 315201, zhejiang, peoples r china ; [ren, w. j.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china
KeywordMagnetostriction Magnetocrystalline Anisotropy Laves Compound Light Rare Earth X-ray Technique
Funding OrganizationNational Natural Science Foundation of China [50801039]; National Basic Research Program of China [2012CB619404]; Zhejiang Province [LY14E010001]; KC Wong Magna Fund of Ningbo University
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/75037
Collection中国科学院金属研究所
Corresponding Authorliujinjun1@nbu.edu.cn
Recommended Citation
GB/T 7714
Liu, X. Y.,Liu, J. J.,Pan, Z. B.,et al. Optimization on magnetic anisotropy and magnetostriction in TbxHo0.8-xPr0.2(Fe0.8Co0.2)(1.93) compounds[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2015,391:60-64.
APA Liu, X. Y..,Liu, J. J..,Pan, Z. B..,Song, X. H..,Zhang, Z. R..,...&liujinjun1@nbu.edu.cn.(2015).Optimization on magnetic anisotropy and magnetostriction in TbxHo0.8-xPr0.2(Fe0.8Co0.2)(1.93) compounds.JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,391,60-64.
MLA Liu, X. Y.,et al."Optimization on magnetic anisotropy and magnetostriction in TbxHo0.8-xPr0.2(Fe0.8Co0.2)(1.93) compounds".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 391(2015):60-64.
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