Voltage-induced perpendicular magnetic anisotropy change in magnetic tunnel junctions

被引：219

作者：

Nozaki, T. ^{[1
,2
]}

Shiota, Y. ^{[1
]}

Shiraishi, M. ^{[1
]}

Shinjo, T. ^{[1
]}

Suzuki, Y. ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn Sci, Osaka 5608531, Japan

[2] JST, PRESTO, Kawaguchi, Saitama 3320012, Japan

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 02期

关键词：

cobalt alloys; ferromagnetic resonance; gold; iron alloys; magnesium compounds; magnetic epitaxial layers; magnetic multilayers; magnetic tunnelling; magnetoelectric effects; perpendicular magnetic anisotropy; surface magnetism; ELECTRIC-FIELD CONTROL; SPIN-TRANSFER-TORQUE; ROOM-TEMPERATURE; MAGNETORESISTANCE; FERROMAGNETISM; MANIPULATION; VECTOR; FILM;

D O I：

10.1063/1.3279157

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A voltage-induced perpendicular magnetic anisotropy change in an ultrathin FeCo layer was observed in an epitaxial magnetic tunnel junction (MTJ) structure. A spin-transfer induced ferromagnetic resonance measurement technique was used under various bias voltage applications to evaluate the anisotropy change. From the peak frequency shifts, we could estimate that a surface magnetic anisotropy change of 15 mu J/m(2) was induced by an electric field application of 400 mV/nm in the MTJ with a 0.5 nm thick FeCo layer. The realization of voltage-induced anisotropy changes in an MTJ structure should have a large impact on the development of electric-field driven spintronic devices.

引用

页数：3

共 29 条

[1] Emission of spin waves by a magnetic multilayer traversed by a current [J].

Berger, L .

PHYSICAL REVIEW B, 1996, 54 (13) :9353-9358

[2] Magnetoelectric switching of exchange bias [J].

Borisov, P ;

Hochstrat, A ;

Chen, X ;

Kleemann, W ;

Binek, C .

PHYSICAL REVIEW LETTERS, 2005, 94 (11)

[3] Magnetization vector manipulation by electric fields [J].

Chiba, D. ;

Sawicki, M. ;

Nishitani, Y. ;

Nakatani, Y. ;

Matsukura, F. ;

Ohno, H. .

NATURE, 2008, 455 (7212) :515-518

[4] Electrical manipulation of magnetization reversal in a ferromagnetic semiconductor [J].

Chiba, D ;

Yamanouchi, M ;

Matsukura, F ;

Ohno, H .

SCIENCE, 2003, 301 (5635) :943-945

[5] Electric-field control of local ferromagnetism using a magnetoelectric multiferroic [J].

Chu, Ying-Hao ;

Martin, Lane W. ;

Holcomb, Mikel B. ;

Gajek, Martin ;

Han, Shu-Jen ;

He, Qing ;

Balke, Nina ;

Yang, Chan-Ho ;

Lee, Donkoun ;

Hu, Wei ;

Zhan, Qian ;

Yang, Pei-Ling ;

Fraile-Rodriguez, Arantxa ;

Scholl, Andreas ;

Wang, Shan X. ;

Ramesh, R. .

NATURE MATERIALS, 2008, 7 (06) :478-482

[6] Predicted magnetoelectric effect in Fe/BaTiO3 multilayers:: Ferroelectric control of magnetism [J].

Duan, Chun-Gang ;

Jaswal, S. S. ;

Tsymbal, E. Y. .

PHYSICAL REVIEW LETTERS, 2006, 97 (04)

[7] Surface magnetoelectric effect in ferromagnetic metal films [J].

Duan, Chun-Gang ;

Velev, Julian P. ;

Sabirianov, R. F. ;

Zhu, Ziqiang ;

Chu, Junhao ;

Jaswal, S. S. ;

Tsymbal, E. Y. .

PHYSICAL REVIEW LETTERS, 2008, 101 (13)

[8] Multiferroic and magnetoelectric materials [J].

Eerenstein, W. ;

Mathur, N. D. ;

Scott, J. F. .

NATURE, 2006, 442 (7104) :759-765

[9] The temperature-dependent growth of Fe submonolayer film on Au(001) studied by barrier height imaging using scanning tunneling microscopy [J].

Kawagoe, T ;

Kotaki, T ;

Shibasaki, T ;

Ohmori, Y ;

Itoh, A .

SURFACE SCIENCE, 2000, 468 (1-3) :1-9

[10] Microwave oscillations of a nanomagnet driven by a spin-polarized current [J].

Kiselev, SI ;

Sankey, JC ;

Krivorotov, IN ;

Emley, NC ;

Schoelkopf, RJ ;

Buhrman, RA ;

Ralph, DC .

NATURE, 2003, 425 (6956) :380-383

← 1 2 3 →