First principles study on the local magnetic anisotropy near surfaces of Dy2Fe14B and Nd2Fe14B magnets

被引：28

作者：

Tanaka, Susumu ^{[1
]}

Moriya, Hiroshi ^{[1
,2
]}

Tsuchiura, Hiroki ^{[1
]}

Sakuma, Akimasa ^{[1
]}

Divis, Martin ^{[3
]}

Novak, Pavel ^{[4
]}

机构：

[1] Tohoku Univ, Dept Appl Phys, Aoba Ku, Sendai, Miyagi 9808579, Japan

[2] Hitachi Ltd, Mech Engn Res Lab, Hitachinaka, Ibaraki 3120034, Japan

[3] Charles Univ Prague, Dept Condensed Matter, FMF, Prague, Czech Republic

[4] ASCR, Inst Phys, Prague 16253 6, Czech Republic

来源：

JOURNAL OF APPLIED PHYSICS | 2011年 / 109卷 / 07期

关键词：

D O I：

10.1063/1.3553935

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The electronic structures of a (001) surface of crystalline Dy2Fe14B and Nd2Fe14B have been studied and the crystal field parameters at the rare-earth sites have been estimated by using first principles calculations. It is shown that Dy or Nd ions at the surface exhibit an in-plane magnetic anisotropy and can be nucleation sites of magnetization reversal. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3553935]

引用

页数：3

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