Switching the chirality of a magnetic vortex deterministically with an electric field

Ren Ci Peng, Jia Mian Hu, Tiannan Yang, Xiaoxing Cheng, Jianjun Wang, Hou Bing Huang, Long-qing Chen, Ce Wen Nan

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Deterministic switching of a magnetic vortex with an electric field is challenging because electric fields cannot break time-reversal symmetry. Here we demonstrate, using phase-field simulations, a deterministic switching of the vortex chirality in a triangle-shaped nanomagnet by applying an electric field to its underlying ferroelectric layer. The nanomagnet is juxtaposed with an overlying antiferromagnetic layer to acquire an exchange bias from their interface. The simulations show that such deterministic electrically-driven magnetic vortex chirality switching is enabled by a synergistic effect of the electric-field-induced strain from the ferroelectric, the three-fold in-plane shape anisotropy of the nanomagnet, and the exchange-bias field. (Image Presented) IMPACT STATEMENT An electric-field-controlled deterministic switching of magnetic vortex chirality has been computationally demonstrated in a novel magnetoelect.

Original languageEnglish (US)
Pages (from-to)669-675
Number of pages7
JournalMaterials Research Letters
Volume6
Issue number12
DOIs
StatePublished - Dec 2 2018

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Chirality
Vortex flow
Electric fields
Ferroelectric materials
Anisotropy

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Peng, Ren Ci ; Hu, Jia Mian ; Yang, Tiannan ; Cheng, Xiaoxing ; Wang, Jianjun ; Huang, Hou Bing ; Chen, Long-qing ; Nan, Ce Wen. / Switching the chirality of a magnetic vortex deterministically with an electric field. In: Materials Research Letters. 2018 ; Vol. 6, No. 12. pp. 669-675.
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Switching the chirality of a magnetic vortex deterministically with an electric field. / Peng, Ren Ci; Hu, Jia Mian; Yang, Tiannan; Cheng, Xiaoxing; Wang, Jianjun; Huang, Hou Bing; Chen, Long-qing; Nan, Ce Wen.

In: Materials Research Letters, Vol. 6, No. 12, 02.12.2018, p. 669-675.

Research output: Contribution to journalArticle

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AU - Peng, Ren Ci

AU - Hu, Jia Mian

AU - Yang, Tiannan

AU - Cheng, Xiaoxing

AU - Wang, Jianjun

AU - Huang, Hou Bing

AU - Chen, Long-qing

AU - Nan, Ce Wen

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AB - Deterministic switching of a magnetic vortex with an electric field is challenging because electric fields cannot break time-reversal symmetry. Here we demonstrate, using phase-field simulations, a deterministic switching of the vortex chirality in a triangle-shaped nanomagnet by applying an electric field to its underlying ferroelectric layer. The nanomagnet is juxtaposed with an overlying antiferromagnetic layer to acquire an exchange bias from their interface. The simulations show that such deterministic electrically-driven magnetic vortex chirality switching is enabled by a synergistic effect of the electric-field-induced strain from the ferroelectric, the three-fold in-plane shape anisotropy of the nanomagnet, and the exchange-bias field. (Image Presented) IMPACT STATEMENT An electric-field-controlled deterministic switching of magnetic vortex chirality has been computationally demonstrated in a novel magnetoelect.

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