Electric-field-induced skyrmion distortion and giant lattice rotation in the magnetoelectric insulator Cu2OSeO3

J. S. White; K. Prša; P. Huang; A. A. Omrani; I. Živković; M. Bartkowiak; H. Berger; A. Magrez; J. L. Gavilano; G. Nagy; J. Zang; H. M. Rønnow

doi:10.1103/PhysRevLett.113.107203

Electric-field-induced skyrmion distortion and giant lattice rotation in the magnetoelectric insulator Cu₂OSeO₃

J. S. White, K. Prša, P. Huang, A. A. Omrani, I. Živković, M. Bartkowiak, H. Berger, A. Magrez, J. L. Gavilano, G. Nagy, J. Zang, H. M. Rønnow

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177 Scopus citations

Abstract

Uniquely in Cu₂OSeO₃, the Skyrmions, which are topologically protected magnetic spin vortexlike objects, display a magnetoelectric coupling and can be manipulated by externally applied electric (E) fields. Here, we explore the E-field coupling to the magnetoelectric Skyrmion lattice phase, and study the response using neutron scattering. Giant E-field induced rotations of the Skyrmion lattice are achieved that span a range of ∼25°. Supporting calculations show that an E-field-induced Skyrmion distortion lies behind the lattice rotation. Overall, we present a new approach to Skyrmion control that makes no use of spin-transfer torques due to currents of either electrons or magnons.

Original language	English
Article number	107203
Journal	Physical Review Letters
Volume	113
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevLett.113.107203
State	Published - Sep 4 2014
Externally published	Yes

Funding

Funders	Funder number
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung	146870

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10.1103/PhysRevLett.113.107203

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White, J. S., Prša, K., Huang, P., Omrani, A. A., Živković, I., Bartkowiak, M., Berger, H., Magrez, A., Gavilano, J. L., Nagy, G., Zang, J., & Rønnow, H. M. (2014). Electric-field-induced skyrmion distortion and giant lattice rotation in the magnetoelectric insulator Cu₂OSeO₃. Physical Review Letters, 113(10), Article 107203. https://doi.org/10.1103/PhysRevLett.113.107203

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abstract = "Uniquely in Cu2OSeO3, the Skyrmions, which are topologically protected magnetic spin vortexlike objects, display a magnetoelectric coupling and can be manipulated by externally applied electric (E) fields. Here, we explore the E-field coupling to the magnetoelectric Skyrmion lattice phase, and study the response using neutron scattering. Giant E-field induced rotations of the Skyrmion lattice are achieved that span a range of ∼25°. Supporting calculations show that an E-field-induced Skyrmion distortion lies behind the lattice rotation. Overall, we present a new approach to Skyrmion control that makes no use of spin-transfer torques due to currents of either electrons or magnons.",

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AU - White, J. S.

AU - Prša, K.

AU - Huang, P.

AU - Omrani, A. A.

AU - Živković, I.

AU - Bartkowiak, M.

AU - Berger, H.

AU - Magrez, A.

AU - Gavilano, J. L.

AU - Nagy, G.

AU - Zang, J.

AU - Rønnow, H. M.

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AB - Uniquely in Cu2OSeO3, the Skyrmions, which are topologically protected magnetic spin vortexlike objects, display a magnetoelectric coupling and can be manipulated by externally applied electric (E) fields. Here, we explore the E-field coupling to the magnetoelectric Skyrmion lattice phase, and study the response using neutron scattering. Giant E-field induced rotations of the Skyrmion lattice are achieved that span a range of ∼25°. Supporting calculations show that an E-field-induced Skyrmion distortion lies behind the lattice rotation. Overall, we present a new approach to Skyrmion control that makes no use of spin-transfer torques due to currents of either electrons or magnons.

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Electric-field-induced skyrmion distortion and giant lattice rotation in the magnetoelectric insulator Cu₂OSeO₃

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