Skyrmionium - high velocity without the skyrmion Hall effect

被引：111

作者：

Kolesnikov, Alexander G. ^{[1
]}

Stebliy, Maksim E. ^{[1
]}

Samardak, Alexander S. ^{[1
,2
]}

Ognev, Alexey V. ^{[1
]}

机构：

[1] Far Eastern Fed Univ, Sch Nat Sci, Vladivostok, Russia

[2] Natl Res South Ural State Univ, Chelyabinsk, Russia

来源：

SCIENTIFIC REPORTS | 2018年 / 8卷

基金：

俄罗斯基础研究基金会;

关键词：

REAL-SPACE OBSERVATION; MAGNETIC SKYRMIONS; STABILITY;

D O I：

10.1038/s41598-018-34934-2

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The lateral motion of a magnetic skyrmion, arising because of the skyrmion Hall effect, imposes a number of restrictions on the use of this spin state in the racetrack memory. A skyrmionium is a more promising spin texture for memory applications, since it has zero total topological charge and propagates strictly along a nanotrack. Here, the stability of the skyrmionium, as well as the dependence of its size on the magnetic parameters, such as the Dzyaloshinskii-Moriya interaction and perpendicular magnetic anisotropy, are studied by means of micromagnetic simulations. We propose an advanced method for the skyrmionium nucleation due to a local enhancement of the spin Hall effect. The stability of the skyrmionium being in motion under the action of the spin polarized current is analyzed.

引用

页数：8

共 62 条

[1] Effect of heavy metal layer thickness on spin-orbit torque and current-induced switching in Hf¦CoFeB¦MgO structures [J].

Akyol, Mustafa ;

Jiang, Wanjun ;

Yu, Guoqiang ;

Fan, Yabin ;

Gunes, Mustafa ;

Ekicibil, Ahmet ;

Amiri, Pedram Khalili ;

Wang, Kang L. .

APPLIED PHYSICS LETTERS, 2016, 109 (02)

[2] Static and Dynamical Properties of Antiferromagnetic Skyrmions in the Presence of Applied Current and Temperature [J].

Barker, Joseph ;

Tretiakov, Oleg A. .

PHYSICAL REVIEW LETTERS, 2016, 116 (14)

[3] Laser-Induced Skyrmion Writing and Erasing in an Ultrafast Cryo-Lorentz Transmission Electron Microscope [J].

Berruto, G. ;

Madan, I. ;

Murooka, Y. ;

Vanacore, G. M. ;

Pomarico, E. ;

Rajeswari, J. ;

Lamb, R. ;

Huang, P. ;

Kruchkov, A. J. ;

Togawa, Y. ;

LaGrange, T. ;

McGrouther, D. ;

Ronnow, H. M. ;

Carbone, F. .

PHYSICAL REVIEW LETTERS, 2018, 120 (11)

[4] The stability of vortex-like structures in uniaxial ferromagnets [J].

Bogdanov, A ;

Hubert, A .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 195 (01) :182-192

[5] Topological spin Hall effect in antiferromagnetic skyrmions [J].

Buhl, Patrick M. ;

Freimuth, Frank ;

Bluegel, Stefan ;

Mokrousov, Yuriy .

PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, 2017, 11 (04)

[6] 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

[7] Thickness dependence of the interfacial Dzyaloshinskii-Moriya interaction in inversion symmetry broken systems [J].

Cho, Jaehun ;

Kim, Nam-Hui ;

Lee, Sukmock ;

Kim, June-Seo ;

Lavrijsen, Reinoud ;

Solignac, Aurelie ;

Yin, Yuxiang ;

Han, Dong-Soo ;

van Hoof, Niels J. J. ;

Swagten, Henk J. M. ;

Koopmans, Bert ;

You, Chun-Yeol .

NATURE COMMUNICATIONS, 2015, 6

[8] Spin-orbit torque magnetization switching of a three-terminal perpendicular magnetic tunnel junction [J].

Cubukcu, Murat ;

Boulle, Olivier ;

Drouard, Marc ;

Garello, Kevin ;

Avci, Can Onur ;

Miron, Ioan Mihai ;

Langer, Juergen ;

Ocker, Berthold ;

Gambardella, Pietro ;

Gaudin, Gilles .

APPLIED PHYSICS LETTERS, 2014, 104 (04)

[9] Laser-Induced Magnetic Nanostructures with Tunable Topological Properties [J].

Finazzi, M. ;

Savoini, M. ;

Khorsand, A. R. ;

Tsukamoto, A. ;

Itoh, A. ;

Duo, L. ;

Kirilyuk, A. ;

Rasing, Th ;

Ezawa, M. .

PHYSICAL REVIEW LETTERS, 2013, 110 (17)

[10] Encoding orbital angular momentum of light in magnets [J].

Fujita, Hiroyuki ;

Sato, Masahiro .

PHYSICAL REVIEW B, 2017, 96 (06)

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