Giant Modification of the Magnetocrystalline Anisotropy in Transition-Metal Monolayers by an External Electric Field

被引：331

作者：

Nakamura, Kohji ^{[1
]}

Shimabukuro, Riki ^{[1
]}

Fujiwara, Yuji ^{[1
]}

Akiyama, Toru ^{[1
]}

Ito, Tomonori ^{[1
]}

Freeman, A. J. ^{[2
]}

机构：

[1] Mie Univ, Dept Engn Phys, Tsu, Mie 5148507, Japan

[2] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 18期

关键词：

MAGNETIC-ANISOTROPY; SURFACES; ENERGY;

D O I：

10.1103/PhysRevLett.102.187201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Controlling and designing quantum magnetic properties by an external electric field is a key challenge in modern magnetic physics. Here, from first principles, the effects of an external electric field on the magnetocrystalline anisotropy (MCA) in ferromagnetic transition-metal monolayers are demonstrated which show that the MCA in an Fe(001) monolayer [but not in Co(001) and Ni(001) monolayers] can be controlled by the electric field through a change in band structure, in which small components of the p orbitals near the Fermi level, which are coupled to the d states by the electric field, play a key role. This prediction obtained opens a way to control the MCA by the electric field and invites experiments.

引用

页数：4

共 21 条

[1] Colloquium:: Opportunities in nanomagnetism [J].