Switching of a single ferromagnetic layer driven by spin Hall effect

被引：74

作者：

Finocchio, G. ^{[1
]}

Carpentieri, M. ^{[2
]}

Martinez, E. ^{[3
]}

Azzerboni, B. ^{[1
]}

机构：

[1] Univ Messina, Dept Elect Engn Ind Chem & Engn, I-98166 Messina, Italy

[2] Politecn Bari, Dept Elect & Informat Engn, I-70125 Bari, Italy

[3] Univ Salamanca, E-38008 Salamanca, Spain

来源：

APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 21期

关键词：

Spin Hall effect;

D O I：

10.1063/1.4808092

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The magnetization switching of a thin ferromagnetic layer placed on top of a heavy metal (such as Pt, Ta, or W) driven by an in-plane current has been observed in recent experiments. The magnetization dynamics of these processes is studied in a full micromagnetic framework which takes into account the transfer-torque from spin Hall effect due to the spin-orbit coupling. Simulations indicate that the reversal occurs via nucleation of complex magnetization patterns. In particular, magnetic bubbles appear during the reversal of the magnetization in the perpendicular configuration while for the in-plane configuration, nucleation of vortexes is observed. (C) 2013 AIP Publishing LLC.

引用

页数：5

共 16 条

[1] Time-resolved imaging of spin transfer switching:: Beyond the macrospin concept [J].

Acremann, Y ;

Strachan, JP ;

Chembrolu, V ;

Andrews, SD ;

Tyliszczak, T ;

Katine, JA ;

Carey, MJ ;

Clemens, BM ;

Siegmann, HC ;

Stöhr, J .

PHYSICAL REVIEW LETTERS, 2006, 96 (21)

[2] Single-Shot Time-Domain Studies of Spin-Torque-Driven Switching in Magnetic Tunnel Junctions [J].

Cui, Y. -T. ;

Finocchio, G. ;

Wang, C. ;

Katine, J. A. ;

Buhrman, R. A. ;

Ralph, D. C. .

PHYSICAL REVIEW LETTERS, 2010, 104 (09)

[3]

Demidov VE, 2012, NAT MATER, V11, P1028, DOI [10.1038/nmat3459, 10.1038/NMAT3459]

[4] Magnetization reversal driven by spin-polarized current in exchange-biased nanoscale spin valves [J].

Finocchio, G. ;

Krivorotov, I. N. ;

Torres, L. ;

Buhrman, R. A. ;

Ralph, D. C. ;

Azzerboni, B. .

PHYSICAL REVIEW B, 2007, 76 (17)

[5] Spin Hall effect [J].

Hirsch, JE .

PHYSICAL REVIEW LETTERS, 1999, 83 (09) :1834-1837

[6]

Jungwirth T, 2012, NAT MATER, V11, P382, DOI [10.1038/NMAT3279, 10.1038/nmat3279]

[7]

Liu L., ARXIV11113702

[8]

Liu L., 2012, THESIS CORNELL U

[9] Magnetic Oscillations Driven by the Spin Hall Effect in 3-Terminal Magnetic Tunnel Junction Devices [J].

Liu, Luqiao ;

Pai, Chi-Feng ;

Ralph, D. C. ;

Buhrman, R. A. .

PHYSICAL REVIEW LETTERS, 2012, 109 (18)

[10] Current-Induced Switching of Perpendicularly Magnetized Magnetic Layers Using Spin Torque from the Spin Hall Effect [J].

Liu, Luqiao ;

Lee, O. J. ;

Gudmundsen, T. J. ;

Ralph, D. C. ;

Buhrman, R. A. .

PHYSICAL REVIEW LETTERS, 2012, 109 (09)

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