Effect of spin transfer torque on domain wall motion regimes in [Co/Ni] superlattice wires

被引：5
作者：
Le Gall, S. [1 ,2 ]
Vernier, N. [3 ]
Montaigne, F. [1 ]
Thiaville, A. [4 ]
Sampaio, J. [4 ]
Ravelosona, D. [3 ]
Mangin, S. [1 ]
Andrieu, S. [1 ]
Hauet, T. [1 ]
机构：
[1] Univ Lorraine, CNRS, Inst Jean Lamour, UMR 7198, Nancy, France
[2] Univ Paris Sud, UPMC, Genie Elect & Elect Paris, UMR 8507,CNRS, 11 Rue Joliot Curie, Gif Sur Yvette, France
[3] Univ Paris Sud, CNRS, Inst Elect Fondamentale, UMR 8622, Orsay, France
[4] Univ Paris Sud, CNRS, Lab Phys Solides, UMR 8502, Orsay, France
来源：
PHYSICAL REVIEW B | 2017年 / 95卷 / 18期
基金：
美国国家科学基金会;
关键词：
MAGNETIZATION REVERSAL;
D O I：
10.1103/PhysRevB.95.184419
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The combined effect of magnetic field and current on domain wall motion is investigated in epitaxial [Co/Ni] microwires. Both thermally activated and flow regimes are found to be strongly affected by current. All experimental data can be understood by taking into account both adiabatic and nonadiabatic components of the spin transfer torque, the parameters of which are extracted. In the precessional flow regime, it is shown that the domain wall can move in the electron flow direction against a strong applied field, as previously observed. In addition, for a large range of applied magnetic field and injected current, a stochastic domain wall displacement after each pulse is observed. Two-dimensional micromagnetic simulations, including some disorder, show a random fluctuation of the domain wall position that qualitatively matches the experimental results.
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页数：7
相关论文
共 37 条
[1]  
Andrieu S., UNPUB
[2]   Ferromagnetic resonance study of sputtered Co|Ni multilayers [J].
Beaujour, J. -M. L. ;
Chen, W. ;
Krycka, K. ;
Kao, C. -C. ;
Sun, J. Z. ;
Kent, A. D. .
EUROPEAN PHYSICAL JOURNAL B, 2007, 59 (04) :475-483
[3]   Emission of spin waves by a magnetic multilayer traversed by a current [J].
Berger, L .
PHYSICAL REVIEW B, 1996, 54 (13) :9353-9358
[4]   Nonadiabatic Spin Transfer Torque in High Anisotropy Magnetic Nanowires with Narrow Domain Walls [J].
Boulle, O. ;
Kimling, J. ;
Warnicke, P. ;
Klaeui, M. ;
Ruediger, U. ;
Malinowski, G. ;
Swagten, H. J. M. ;
Koopmans, B. ;
Ulysse, C. ;
Faini, G. .
PHYSICAL REVIEW LETTERS, 2008, 101 (21)
[5]   Non-adiabatic spin-torques in narrow magnetic domain walls [J].
Burrowes, C. ;
Mihai, A. P. ;
Ravelosona, D. ;
Kim, J. -V. ;
Chappert, C. ;
Vila, L. ;
Marty, A. ;
Samson, Y. ;
Garcia-Sanchez, F. ;
Buda-Prejbeanu, L. D. ;
Tudosa, I. ;
Fullerton, E. E. ;
Attane, J. -P. .
NATURE PHYSICS, 2010, 6 (01) :17-21
[6]   Magnetic domain walls displacement: Automotion versus spin-transfer torque [J].
Chauleau, Jean-Yves ;
Weil, Raphael ;
Thiaville, Andre ;
Miltat, Jacques .
PHYSICAL REVIEW B, 2010, 82 (21)
[7]   Tailoring the chirality of magnetic domain walls by interface engineering [J].
Chen, Gong ;
Ma, Tianping ;
N'Diaye, Alpha T. ;
Kwon, Heeyoung ;
Won, Changyeon ;
Wu, Yizheng ;
Schmid, Andreas K. .
NATURE COMMUNICATIONS, 2013, 4
[8]   Track heating study for current-induced domain wall motion experiments [J].
Curiale, J. ;
Lemaitre, A. ;
Faini, G. ;
Jeudy, V. .
APPLIED PHYSICS LETTERS, 2010, 97 (24)
[9]   Depinning probability of a magnetic domain wall in nanowires by spin-polarized currents [J].
Fukami, S. ;
Yamanouchi, M. ;
Ikeda, S. ;
Ohno, H. .
NATURE COMMUNICATIONS, 2013, 4
[10]   Strong perpendicular magnetic anisotropy in Ni/Co(111) single crystal superlattices [J].
Girod, S. ;
Gottwald, M. ;
Andrieu, S. ;
Mangin, S. ;
McCord, J. ;
Fullerton, Eric E. ;
Beaujour, J. -M. L. ;
Krishnatreya, B. J. ;
Kent, A. D. .
APPLIED PHYSICS LETTERS, 2009, 94 (26)
1234