Magnetovolume effect of Fe sublattice in R2Fe17

Authors
Kamimori, T Kinoshita, K Mochimaru, J Konishi, K Tange, H
Citation
T. Kamimori et al., Magnetovolume effect of Fe sublattice in R2Fe17, J MAGN MAGN, 226, 2001, pp. 993-995
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN journal
03048853 → ACNP
Volume
226
Year of publication
2001
Part
1
Pages
993 - 995
Database
ISI
SICI code
0304-8853(200105)226:<993:MEOFSI>2.0.ZU;2-P
Abstract
The measured magnetovolume effect of Fe sublattice in R2Fe17, dT(c)/dV and dM(s)/dV are 3.8 x 10(3) K/nm(3) and 1.8 X 10(1) mu (B)/nm(3) /Fe. However, these magnetovolume effects cannot explain the elevation of Tc caused by t he nitrogenation and the substitution of Si for Fe in Y2Fe17 compounds. On the contrary, the Fe sublattice in R2Fe14Si3 compounds has very small dTc/d V. The elevation of Tc is caused by the reduction of Invar properties of ir on sublattice in the R2Fe17 compounds. (C) 2001 Elsevier Science B.V. All r ights reserved.