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Titolo:
Magnetostriction enhancement in Laves compounds (Sm,Yb)Fe-2
Autore:
Guo, ZJ; Zhang, ZD; Busbridge, SC; Wang, BW; Zhao, XG; Geng, DY;
Indirizzi:
Acad Sinica, Inst Met Res, Int Ctr Mat Phys, Shenyang 110015, Peoples R China Acad Sinica Shenyang Peoples R China 110015 yang 110015, Peoples R China Univ Brighton, Sch Engn, Brighton BN2 4GJ, E Sussex, England Univ Brighton Brighton E Sussex England BN2 4GJ N2 4GJ, E Sussex, England
Titolo Testata:
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
fascicolo: 2-3, volume: 231, anno: 2001,
pagine: 191 - 194
SICI:
0304-8853(200106)231:2-3<191:MEILC(>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
CURIE-TEMPERATURE; RARE-EARTH;
Keywords:
magnetostriction; rare earths; Laves compounds;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
11
Recensione:
Indirizzi per estratti:
Indirizzo: Guo, ZJ Acad Sinica, Inst Met Res, Int Ctr Mat Phys, 72 Wenhua Rd, Shenyang 110015, Peoples R China Acad Sinica 72 Wenhua Rd Shenyang Peoples R China 110015 R China
Citazione:
Z.J. Guo et al., "Magnetostriction enhancement in Laves compounds (Sm,Yb)Fe-2", J MAGN MAGN, 231(2-3), 2001, pp. 191-194

Abstract

The magnetic and magnetostrictive properties of compounds (Sm1-xYbx)Fe-2 (0 less than or equal to x less than or equal to 0.3) have been studied. When x < 0.15, the compounds crystallize in the cubic structure of a C15 MgCu2-type Laves phase. For x > 0.15 a small amount of (Sm,Yb)Fe-3 compound witha PuNi3-type structure appears and its amount increases with increasing Ybcontent. The magnetic ordering of 1:2 compounds is slightly strengthened by the substitution of Yb for Sm. Lattice parameters for Laves phase compounds keep almost unchanged for the whole range investigated, indicating the deviation from Vegard's law linear variation with composition. A magnetostriction enhancement of about 15% when x = 0.05% both in spontaneous and polycrystalline magnetostrictions in Sm0.95Yb0.05Fe2 has been observed, which can be ascribed to the anisotropy compensation effect. (C) 2001 Elsevier Science B.V. All rights reserved.

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Documento generato il 29/09/20 alle ore 22:27:51