Realization of artificial skyrmion in CoCrPt/NiFe bilayers

doi:10.1088/1674-1056/27/12/127503

中国物理B ›› 2018, Vol. 27 ›› Issue (12): 127503-127503.doi: 10.1088/1674-1056/27/12/127503

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇下一篇

Realization of artificial skyrmion in CoCrPt/NiFe bilayers

Yi Liu(刘益), Yong-Ming Luo(骆泳铭), Zheng-Hong Qian(钱正洪), Jian-Guo Zhu(朱建国)

1 College of Materials Science and Engineering, Sichuan University, Chengdu 610064, China;
2 Center for Integrated Spintronic Device, Hangzhou Dianzi University, Hangzhou 310018, China

收稿日期:2018-07-18 修回日期:2018-09-30 出版日期:2018-12-05 发布日期:2018-12-05
通讯作者: Zheng-Hong Qian, Jian-Guo Zhu E-mail:zqian@hdu.edu.cn;nic0400@scu.edu.cn
基金资助:
Project supported by the National Key Research and Development Program of China (Grant No. 2018YFF01010701), the National Natural Science Foundation of China (Grant No. 51332003), and the Sichuan Science and Technology Program, China (Grant No. 2018G20140).

Realization of artificial skyrmion in CoCrPt/NiFe bilayers

Yi Liu(刘益)^1,2, Yong-Ming Luo(骆泳铭)², Zheng-Hong Qian(钱正洪)^1,2, Jian-Guo Zhu(朱建国)¹

1 College of Materials Science and Engineering, Sichuan University, Chengdu 610064, China;
2 Center for Integrated Spintronic Device, Hangzhou Dianzi University, Hangzhou 310018, China

Received:2018-07-18 Revised:2018-09-30 Online:2018-12-05 Published:2018-12-05
Contact: Zheng-Hong Qian, Jian-Guo Zhu E-mail:zqian@hdu.edu.cn;nic0400@scu.edu.cn
Supported by:
Project supported by the National Key Research and Development Program of China (Grant No. 2018YFF01010701), the National Natural Science Foundation of China (Grant No. 51332003), and the Sichuan Science and Technology Program, China (Grant No. 2018G20140).

摘要/Abstract

摘要：

Skyrmion, as a quasi-particle structure, has attracted much attention due to its potential applications in future spintronic devices. Artificial skyrmion structure has aroused great interest as it can be stabilized at room temperature, without needing to incorporate materials with Dzyaloshinskii-Moriya interaction (DMI) into it. In this paper, it is found that the artificial skyrmion structure can be realized in CoCrPt/NiFe bilayers by micromagnetic simulations. The critical magnetic field of the core decreases as the diameter of the NiFe soft magnetic layer increases. The artificial skyrmion has excellent topological protection, and the critical magnetic field of plane is about 76 mT (760 Oe, 1 Oe=79.5775 A·m^-1). The external magnetic field plays a key role in determining the core diameter of the skyrmion, and the artificial skyrmion can be realized in CoCrPt/Cu/CoCrPt/NiFe four-layer with a diameter of 13 nm.

关键词: bilayers, artificial skyrmion, micromagnetic simulations

Abstract:

Key words: bilayers, artificial skyrmion, micromagnetic simulations

中图分类号: (Magnetic properties of interfaces (multilayers, superlattices, heterostructures))

75.70.Cn

75.70.Kw (Domain structure (including magnetic bubbles and vortices)) 75.78.Cd (Micromagnetic simulations ?) 75.50.Ww (Permanent magnets)

刘益, 骆泳铭, 钱正洪, 朱建国. Realization of artificial skyrmion in CoCrPt/NiFe bilayers[J]. 中国物理B, 2018, 27(12): 127503-127503.

Yi Liu(刘益), Yong-Ming Luo(骆泳铭), Zheng-Hong Qian(钱正洪), Jian-Guo Zhu(朱建国). Realization of artificial skyrmion in CoCrPt/NiFe bilayers[J]. Chin. Phys. B, 2018, 27(12): 127503-127503.

参考文献 34

[1]	Nagaosa N and Tokura Y 2013 Nat. Nanotechnol. 8 899 doi: 10.1038/nnano.2013.243
[2]	Skyrme T H R 1962 Nucl. Phys. 31 556 doi: 10.1016/0029-5582(62)90775-7
[3]	Rössler U K, Bogdanov A N and Pfleiderer C 2006 Nature 442 797 doi: 10.1038/nature05056
[4]	Mühlbauer S, Binz B, Jonietz F, Pfleiderer C, Rosch A, Neubauer A, Georgii R and Böni P 2009 Science 323 915 doi: 10.1126/science.1166767
[5]	Kanazawa N, Seki S and Tokura Y 2017 Adv. Mater. 29 1603227 doi: 10.1002/adma.201603227
[6]	Yu X Z, Onose Y, Kanazawa N, Park J H, Han J H, Matsui Y, Nagaosa N and Tokura Y 2010 Nature 465 901 doi: 10.1038/nature09124
[7]	Liu Y and Li Y 2015 Chin. Phys. B 24 017506 doi: 10.1088/1674-1056/24/1/017506
[8]	Heinze S, von Bergmann K, Menzel M, Brede J, Kubetzka A, Wiesendanger R, Bihlmayer G and Blügel S 2011 Nat. Phys. 7 713 doi: 10.1038/nphys2045
[9]	Fert A, Reyren N and Cros V 2017 Nat. Rev. Mater. 2 17031 doi: 10.1038/natrevmats.2017.31
[10]	Jiang W, Chen G, Liu K, Zang J, Te Velthuis S G E and Hoffmann A 2017 Phys. Rep. 704 1 doi: 10.1016/j.physrep.2017.08.001
[11]	Liu Y and Zang J 2018 Acta Phys. Sin. 67 131201 (in Chinese)
[12]	Finocchio G, Büttner F, Tomasello R, Carpentieri M and Kläui M 2016 J. Phys. D: Appl. Phys. 49 423001 doi: 10.1088/0022-3727/49/42/423001
[13]	Ao P 2017 Int. J. Mod. Phys. B 31 1780001 doi: 10.1142/S0217979217800017
[14]	Fert A, Cros V and Sampaio J 2013 Nat. Nanotechnol. 8 152 doi: 10.1038/nnano.2013.29
[15]	Liang X, Zhao L, Qiu L, Li S, Ding L, Feng Y, Zhang X, Zhou Y and Zhao G 2018 Acta Phys. Sin. 67 137510 (in Chinese)
[16]	Woo S, Litzius K, Krüger B, Im M, Caretta L, Richter K, Mann M, Krone A, Reeve R M, Weig, M, Agrawal P, Lemesh I, Mawass M, Fischer P, Kläui M and Beach G S D 2016 Nat. Mater. 15 501 doi: 10.1038/nmat4593
[17]	Moreau-Luchaire C, Moutafis C, Reyren N, Sampaio J, Vaz C A F, Van Horne N, Bouzehouane K, Garcia K, Deranlot C, Warnicke P, Wohlhüter P, George J M, Weig, M, Raabe J, Cros V and Fert A 2016 Nat. Nanotechnol. 11 444 doi: 10.1038/nnano.2015.313
[18]	Moriya T 1960 Phys. Rev. 120 91 doi: 10.1103/PhysRev.120.91
[19]	Rohart S and Thiaville A 2013 Phys. Rev. B 88 184422 doi: 10.1103/PhysRevB.88.184422
[20]	Sun L, Cao R X, Miao B F, Feng Z, You B, Wu D, Zhang W, Hu A and Ding H F 2013 Phys. Rev. Lett. 110 167201 doi: 10.1103/PhysRevLett.110.167201
[21]	Li J, Tan A, Moon K W, Doran A, Marcus M A, Young A T, Arenholz E, Ma S, Yang R F, Hwang C and Qiu Z Q 2014 Nat. Commun. 5 4704 doi: 10.1038/ncomms5704
[22]	Gilbert D A, Maranville B B, Balk A L, Kirby B J, Fischer P, Pierce D T, Unguris J, Borchers J A and Liu K 2015 Nat. Commun. 6 8462 doi: 10.1038/ncomms9462
[23]	Miao B F, Sun L, Wu Y W, Tao X D, Xiong X, Wen Y, Cao R X, Wang P, Wu D and Zhan Q F 2014 Phys. Rev. B 90 174411 doi: 10.1103/PhysRevB.90.174411
[24]	Yu X, Mostovoy M, Tokunaga Y, Zhang W, Kimoto K, Matsui Y, Kaneko Y, Nagaosa N and Tokura Y 2012 Proc. Natl. Acad. Sci. USA 109 8856 doi: 10.1073/pnas.1118496109
[25]	Cheng X M, Li Z Y, Yang X F, Li Q, Li Z, Jin F, Lin G Q 2006 J. Magn. Magn. Mater. 303 e137
[26]	Bai R, Qian Z, Zhu H, Li Q, Li Y, Peng Y and Huo D 2017 IEEE Trans. Magn. 53 4400104
[27]	Hu H, Qiu X and Shi Z 2013 Chin. Phys. Lett. 30 027501 doi: 10.1088/0256-307X/30/2/027501
[28]	Shinjo T, Okuno T, Hassdorf R, Shigeto K and Ono T 2000 Science 289 930 doi: 10.1126/science.289.5481.930
[29]	Metlov K L and Guslienko K Y 2002 J. Magn. Magn. Mater. 242-245 1015 (in Chinese)
[30]	Li H, Hua Z and Li D 2017 Chin. Phys. B 26 017502 doi: 10.1088/1674-1056/26/1/017502
[31]	Chen G, Mascaraque A, N'Diaye A T and Schmid A K 2015 Appl. Phys. Lett. 106 242404 doi: 10.1063/1.4922726
[32]	Donahue M J and Porter D G 1999 OOMMF User's Guide, Version 1.0 Interagency Report NISTIR 6376 National Institute of Standards and Technology Gaithersburg, MD (Sept 1999)
[33]	Peng Y, Zhao G P, Morvan F J, Wu S Q and Yue M 2017 J. Magn. Magn. Mater. 422 57 doi: 10.1016/j.jmmm.2016.08.060
[34]	Li P, Wu B, Cheng X and Yang X 2008 Trans. Nonferrous Met. Soc. Chin. 18 1664 (in Chinese)

Realization of artificial skyrmion in CoCrPt/NiFe bilayers

Realization of artificial skyrmion in CoCrPt/NiFe bilayers

RichHTML

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献 34

相关文章 8

Metrics

本文评价

推荐阅读 0

[1]	Nan Lu(陆楠) and Jie Guan(管杰). Thermoelectric performance of XI₂ (X = Ge, Sn, Pb) bilayers[J]. 中国物理B, 2022, 31(4): 47201-047201.
[2]	李洪健, 岳明, 吴琼, 彭懿, 李玉卿, 刘卫强, 张东涛, 张久兴. Effects of dipolar interactions on magnetic properties of Co nanowire arrays[J]. 中国物理B, 2017, 26(11): 117503-117503.
[3]	李化南, 华中, 李东飞. Faster vortex core switching with lower current density using three-nanocontact spin-polarized currents in a confined structure[J]. 中国物理B, 2017, 26(1): 17502-017502.
[4]	桑成祥, 赵国平, 夏卫星, 万秀琳, F J Morvan, 张溪超, 谢林华, 张健, 杜娟, 闫阿儒, 刘平. Effect of exchange coupling on magnetic property in Sm-Co/α-Fe layered system[J]. 中国物理B, 2016, 25(3): 37501-037501.
[5]	时钟, 杜军, 周仕明. Exchange bias in ferromagnet/antiferromagnet bilayers[J]. 中国物理B, 2014, 23(2): 27503-027503.
[6]	张开成, 刘邦贵. Unified nonequilibrium dynamical theory for exchange bias and training effects[J]. 中国物理B, 2009, 18(9): 3960-3965.
[7]	许小勇, 王茂华, 胡经国. The structure dependence of exchange bias in ferromagnetic/antiferromagnetic bilayers[J]. 中国物理B, 2008, 17(4): 1443-1447.
[8]	张静, 孙润广. Lipid membrane: inelastic deformation of surface structure by an atomic force microscope[J]. 中国物理B, 2002, 11(8): 776-784.