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A FIRST-PRINCIPLES STUDY OF EXCHANGE INTEGRALS IN MAGNETITE
被引:48
|作者:
UHL, M
[1
]
SIBERCHICOT, B
[1
]
机构:
[1] CTR ETUD LIMEIL VALENTON,F-94195 VILLENEUVE ST GEO,FRANCE
关键词:
D O I:
10.1088/0953-8984/7/22/006
中图分类号:
O469 [凝聚态物理学];
学科分类号:
070205 ;
摘要:
A method is presented to calculate ab initio exchange constants and spin-wave excitations of multi-sublattice magnetic structures on the basis of total-energy calculations of incommensurate magnetic structures. Here the exchange energies, dispersion curves and Curie temperature for magnetite (Fe3O4) are obtained and compared with experimental results.
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页码:4227 / 4237
页数:11
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