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  Electric-field switching of magnetic topological charge in type-I multiferroics

Xu, C., Chen, P., Tan, H., Yang, Y., Xiang, H., & Bellaiche, L. (2020). Electric-field switching of magnetic topological charge in type-I multiferroics. Physical Review Letters, 125(3): 037203. doi:10.1103/PhysRevLett.125.037203.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0008-834C-F Version Permalink: https://hdl.handle.net/21.11116/0000-0009-4F57-E
Genre: Journal Article

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PhysRevLett.125.037203.pdf (Publisher version), 4MB
 
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 Creators:
Xu, Changsong1, Author
Chen, Peng1, Author
Tan, Hengxin2, Author
Yang, Yurong1, Author
Xiang, Hongjun1, Author
Bellaiche, L.1, Author
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1External Organizations, ou_persistent22              
2Nano-Systems from Ions, Spins and Electrons, Max Planck Institute of Microstructure Physics, Max Planck Society, Weinberg 2, 06120 Halle, DE, ou_3287476              

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 Abstract: Applying electric field to control magnetic properties is a very efficient way for spintronics devices. However, the control of magnetic characteristics by electric fields is not straightforward, due to the time-reversal symmetry of magnetism versus spatial inversion symmetry of electricity. Such fundamental difficulty makes it challenging to modify the topology of magnetic skyrmionic states with electric field. Here, we propose a novel mechanism that realizes the electric-field (E) switching of magnetic topological charge (Q) in a controllable and reversible fashion, through the mediation of electric polarization (P) and Dzyaloshinskii-Moriya interaction (D). Such a mechanism is coined here EPDQ. Its validity is demonstrated in a multiferroic VOI2 monolayer, which is predicted to host magnetic bimerons. The change in magnetic anisotropy is found to play a crucial role in realizing the EPDQ process and its microscopic origin is discussed. Our study thus provides a new approach toward the highly desired electric-field control of magnetism.

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 Dates: 2020-07-17
 Publication Status: Issued
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 Identifiers: BibTex Citekey: P13963
DOI: 10.1103/PhysRevLett.125.037203
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Title: Physical Review Letters
  Abbreviation : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: - Volume / Issue: 125 (3) Sequence Number: 037203 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406_1