EFFECTS OF VOLUME EXPANSION AND ELECTRON CORRELATION IN SOME R(FE,M)(12) COMPOUNDS (M=NB, TI, V) AND THEIR NITRIDES

Authors
HU J MEI L LUAN K LI H HU B WANG Z
Citation
J. Hu et al., EFFECTS OF VOLUME EXPANSION AND ELECTRON CORRELATION IN SOME R(FE,M)(12) COMPOUNDS (M=NB, TI, V) AND THEIR NITRIDES, Journal of alloys and compounds, 264(1-2), 1998, pp. 54-58
Citations number
19
Categorie Soggetti
Chemistry Physical","Metallurgy & Metallurigical Engineering","Material Science
Journal title
Journal of alloys and compounds → ACNP
ISSN journal
09258388
Volume
264
Issue
1-2
Year of publication
1998
Pages
54 - 58
Database
ISI
SICI code
0925-8388(1998)264:1-2<54:EOVEAE>2.0.ZU;2-5
Abstract
In the present paper, a study of the effect of the volume change on th e Curie temperature (T-C) of R(Fe,M)(12) (M=Nb, Ti and V) due to nitro genation has been performed. The dlnT(C)/dlnV values were derived by c omparing the Curie temperatures and volumes before and after nitrogen. Our results indicate that the relationship between dlnT(C)/dlnV and t he Curie temperature T-C agrees with an itinerant-model formalism. The effects of volume expansion and the increasing electron correlation p lay important roles in the enhancement of the Curie temperature upon n itrogenation of intermetallic compounds. (C) 1998 Elsevier Science S.A .