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Titolo:
Giant magnetostriction and spin reorientation in quaternary (Sm0.9Pr0.1)(Fe1-xCox)(2)
Autore:
Guo, ZJ; Zhang, ZD; Wang, BW; Zhao, XG;
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
Titolo Testata:
PHYSICAL REVIEW B
fascicolo: 5, volume: 61, anno: 2000,
pagine: 3519 - 3523
SICI:
1098-0121(20000201)61:5<3519:GMASRI>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
MAGNETIC-PROPERTIES; ANISOTROPY; COMPOUND; ALLOYS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
28
Recensione:
Indirizzi per estratti:
Indirizzo: Guo, ZJ Acad Sinica, Inst Met Res, Int Ctr Mat Phys, Shenyang 110015, Peoples R China Acad Sinica Shenyang Peoples R China 110015 015, Peoples R China
Citazione:
Z.J. Guo et al., "Giant magnetostriction and spin reorientation in quaternary (Sm0.9Pr0.1)(Fe1-xCox)(2)", PHYS REV B, 61(5), 2000, pp. 3519-3523

Abstract

Unusual large magnetostrictions as well as anisotropy compensation have been found in quaternary Sm0.9Pr0.1(Fe1-xCox)(2). The magnetostriction constants lambda(111) and lambda(100) at room temperature are -4600 X 10(-6) and 5600 X 10(-6), respectively, in Sm0.9Pr0.1(Fe0.4Co0.6)(2). The fact of \lambda(111)\ approximate to \lambda(100)\ can be understood in terms of the competition of different crystal distortion. The spin reorientation is also observed, which can be understood on the basis of a two-sublattice model. A phase diagram for the spin configurations of Sm0.9Pr0.1(Fe1-xCox)(2) (0 less than or equal to x less than or equal to 1.0) is determined by analyzing the results of Mossbauer and magnetization measurements. The giant magnetostriction is ascribed to the combined contribution of large magnetostrictivepraseodymium and of the filling of the 3d band due to the Co substitution for Fe.

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Documento generato il 21/09/20 alle ore 11:48:21