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Title: Generation of high-density biskyrmions by electric current

Abstract

Much interest has been focused on the manipulation of magnetic skyrmions, including the generation, annihilation, and motion behaviors, for potential applications in spintronics. We experimentally demonstrate that a high-density Bloch-type biskyrmion lattice in MnNiGa can be generated by applying electric current. It is revealed that the density of biskyrmions can be remarkably increased by increasing the electric current, in contrast to the scattered biskyrmions induced by a magnetic field alone. Furthermore, the transition from the ferromagnetic state to the stripe domain structure can be terminated by the electric current, leading to the biskyrmions dominated residual domain pattern. These biskyrmions in such residual domain structure are extremely stable at zero magnetic and electric fields and can further evolve into the high-density biskyrmion lattice over a temperature range from 100 to 330 K. Finally, our experimental findings open up a new pathway for the generation of skyrmion lattice by electric current manipulation.

Authors:
 [1];  [2];  [1];  [1];  [2];  [2];  [1];  [3];  [1];  [2];  [4];  [5];  [1]
  1. Chinese Academy of Sciences (CAS), Beijing (China). Beijing National Lab. for Condensed Matter Physics, Inst. of Physics; Univ. of Chinese Academy of Sciences, Beijing (China). School of Physical Sciences
  2. Chinese Academy of Sciences (CAS), Beijing (China). Beijing National Lab. for Condensed Matter Physics, Inst. of Physics
  3. Univ. of Science and Technology, Beijing (China). School of Materials Science and Engineering
  4. Univ. of Texas, Arlington, TX (United States). Dept. of Physics
  5. Ames Lab., Ames, IA (United States). Materials Sciences and Engineering
Publication Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1394805
Report Number(s):
IS-J-9431
Journal ID: ISSN 2397-4648; PII: 34
Grant/Contract Number:
AC02-07CH11358
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
npj Quantum Materials
Additional Journal Information:
Journal Volume: 2; Journal Issue: 1; Journal ID: ISSN 2397-4648
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; magnetic devices; magnetic properties and materials

Citation Formats

Peng, Licong, Zhang, Ying, He, Min, Ding, Bei, Wang, Wenhong, Tian, Huanfang, Li, Jianqi, Wang, Shouguo, Cai, Jianwang, Wu, Guangheng, Liu, J. Ping, Kramer, Matthew J., and Shen, Bao-gen. Generation of high-density biskyrmions by electric current. United States: N. p., 2017. Web. doi:10.1038/s41535-017-0034-7.
Peng, Licong, Zhang, Ying, He, Min, Ding, Bei, Wang, Wenhong, Tian, Huanfang, Li, Jianqi, Wang, Shouguo, Cai, Jianwang, Wu, Guangheng, Liu, J. Ping, Kramer, Matthew J., & Shen, Bao-gen. Generation of high-density biskyrmions by electric current. United States. doi:10.1038/s41535-017-0034-7.
Peng, Licong, Zhang, Ying, He, Min, Ding, Bei, Wang, Wenhong, Tian, Huanfang, Li, Jianqi, Wang, Shouguo, Cai, Jianwang, Wu, Guangheng, Liu, J. Ping, Kramer, Matthew J., and Shen, Bao-gen. 2017. "Generation of high-density biskyrmions by electric current". United States. doi:10.1038/s41535-017-0034-7. https://www.osti.gov/servlets/purl/1394805.
@article{osti_1394805,
title = {Generation of high-density biskyrmions by electric current},
author = {Peng, Licong and Zhang, Ying and He, Min and Ding, Bei and Wang, Wenhong and Tian, Huanfang and Li, Jianqi and Wang, Shouguo and Cai, Jianwang and Wu, Guangheng and Liu, J. Ping and Kramer, Matthew J. and Shen, Bao-gen},
abstractNote = {Much interest has been focused on the manipulation of magnetic skyrmions, including the generation, annihilation, and motion behaviors, for potential applications in spintronics. We experimentally demonstrate that a high-density Bloch-type biskyrmion lattice in MnNiGa can be generated by applying electric current. It is revealed that the density of biskyrmions can be remarkably increased by increasing the electric current, in contrast to the scattered biskyrmions induced by a magnetic field alone. Furthermore, the transition from the ferromagnetic state to the stripe domain structure can be terminated by the electric current, leading to the biskyrmions dominated residual domain pattern. These biskyrmions in such residual domain structure are extremely stable at zero magnetic and electric fields and can further evolve into the high-density biskyrmion lattice over a temperature range from 100 to 330 K. Finally, our experimental findings open up a new pathway for the generation of skyrmion lattice by electric current manipulation.},
doi = {10.1038/s41535-017-0034-7},
journal = {npj Quantum Materials},
number = 1,
volume = 2,
place = {United States},
year = 2017,
month = 6
}

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