Formation and magnetic properties of Nd3Fe29-xTix (x=1.3-2.0) compounds

Citation
B. Fuquan et al., Formation and magnetic properties of Nd3Fe29-xTix (x=1.3-2.0) compounds, J ALLOY COM, 319(1-2), 2001, pp. 80-84
Citations number
15
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF ALLOYS AND COMPOUNDS
ISSN journal
0925-8388 → ACNP
Volume
319
Issue
1-2
Year of publication
2001
Pages
80 - 84
Database
ISI
SICI code
0925-8388(20010426)319:1-2<80:FAMPON>2.0.ZU;2-O
Abstract
Formation and magnetic properties of the Nd3Fe29-xTix (x=1.3-2.0) compounds have been investigated. The X-ray diffraction patterns and the thermomagne tic analysis show that all compounds investigated, with x=1.3-2.0, are almo st single phase and crystallize in monoclinic symmetry with space group A(2 /m). The unit-cell volume monotonously increases slightly with increasing T i content. A spin reorientation transition from easy plane (perpendicular t o the [204] direction) at room temperature to an easy cone at low temperatu re occurs for all compounds. The spin reorientation temperature T-sr and th e Curie temperature T-C are almost independent of Ti content. A tentative s pin phase diagram was constructed for the Nd3Fe29-xTix (x=1.3-2.0) compound s. Tt is noteworthy that the saturation magnetization M-s at 1.5 K decrease s clearly with increasing Ti element, the stabilizing element Ti not only l eading to a dilution of the Fe sublattice, but also resulting in a decrease of the Fe atomic moment. (C) 2001 Published by Elsevier Science B.V.