First principles study on interfacial electronic structures in exchange-spring magnets

被引：19
|
作者：
Toga, Yuta [1 ]
Moriya, Hiroshi [1 ]
Tsuchiura, Hiroki [1 ]
Sakuma, Akimasa [1 ]
机构：
[1] Tohoku Univ, Dept Appl Phys, Aoba Ku, Sendai, Miyagi 9808579, Japan
来源：
2ND INTERNATIONAL SYMPOSIUM ON ADVANCED MAGNETIC MATERIALS AND APPLICATIONS (ISAMMA 2010) | 2011年 / 266卷
关键词：
TRANSITION-METAL INTERMETALLICS; TOTAL-ENERGY CALCULATIONS; WAVE BASIS-SET; INITIO;
D O I：
10.1088/1742-6596/266/1/012046
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We study the magnetic properties of Nd2Fe14B/alpha-Fe multilayer systems, especially the exchange coupling between the two layers and the crystal field parameters A(2)(0)< r(2)> for the Nd ions located around the interfaces, based on first principles calculations. We find that the exchange coupling depends on the Miller indices of the crystallographic planes at the interface, and can be negative which favors anti-parallel alignment of the magnetizations of the hard- and soft-magnet layers.
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页数：5
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