STUDY OF THE EXCHANGE COUPLING AND MAGNETISM IN ND2FE17

Authors
LI H JIANG ST MEI LM GAO RW DONG JM DING XH
Citation
H. Li et al., STUDY OF THE EXCHANGE COUPLING AND MAGNETISM IN ND2FE17, Journal of magnetism and magnetic materials, 163(1-2), 1996, pp. 125-131
Citations number
21
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
163
Issue
1-2
Year of publication
1996
Pages
125 - 131
Database
ISI
SICI code
0304-8853(1996)163:1-2<125:SOTECA>2.0.ZU;2-I
Abstract
The electronic structure of Nd2Fe17 has been calculated using the spin -polarized MS-X alpha method based on the assumption that the Fe-Fe an d Fe-Nd exchange couplings are dominant. The calculation showed that ( i) there are three levels presenting negative exchange couplings betwe en Fe(f) and Fe(c) atoms, and (ii) the crystal structure symmetry of t he compound sometimes has a more important effect on the exchange coup ling than the atomic spacing. The key factors affecting the magnetic-o rdered property of R(2)Fe(17) are discussed.