Structural and magnetic investigation of nonstoichiometric YFe10V2 and itsinterstitial carbide prepared by arc-melting

Authors
Plugaru, N Lazar, DP Galatanu, A Morariu, M Wiesinger, G Kottar, A Vasile, E
Citation
N. Plugaru et al., Structural and magnetic investigation of nonstoichiometric YFe10V2 and itsinterstitial carbide prepared by arc-melting, J ALLOY COM, 299(1-2), 2000, pp. 45-54
Citations number
29
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF ALLOYS AND COMPOUNDS
ISSN journal
09258388 → ACNP
Volume
299
Issue
1-2
Year of publication
2000
Pages
45 - 54
Database
ISI
SICI code
0925-8388(20000314)299:1-2<45:SAMION>2.0.ZU;2-A
Abstract
A far-from-equilibrium preparation route and using a particular combination of starting materials led us to obtain nonstoichiometric Y(Fe,V)(12) and i ts interstitial carbide. Structural analysis and EDAX results reveal the fo rmation of the main 1:12 phase with the ThMn12-type structure, with 13-15% vacancies at the 3d metal sites. Insertion of interstitial carbon increases the T-C and magnetization of the 1:12 phase, whereas the unit cell volume remains unchanged. The effects of vacancies and interstitial carbon on the Mossbauer hyperfine fields and isomer shifts are discussed with reference t o the calculated quantities. (C) 2000 Elsevier Science S.A. All rights rese rved.