Hysteretic Responses of Skyrmion Lattices to Electric Fields in Magnetoelectric Cu2OSeO3

Han, Myung-Geun; Camino, Fernando; Vorobyev, Pavel A.; Garlow, Joseph; Rov, Rosanna; Söhnel, Tilo; Seidel, Jan; Mostovoy, Maxim; Tretiakov, Oleg A.; Zhu, Yimei

doi:10.1021/acs.nanolett.3c02034

Hysteretic Responses of Skyrmion Lattices to Electric Fields in Magnetoelectric Cu₂OSeO₃

Journal Article · Mon Jul 31 00:00:00 EDT 2023 · Nano Letters

DOI:https://doi.org/10.1021/acs.nanolett.3c02034· OSTI ID:2005142

^[1]; Camino, Fernando ^[1]; Vorobyev, Pavel A. ^[2]; Garlow, Joseph ^[1]; Rov, Rosanna ^[3]; ^[3]; ^[2]; Mostovoy, Maxim ^[4]; ^[2]; ^[1]

Brookhaven National Laboratory (BNL), Upton, NY (United States)
University of New South Wales, Sydney (Australia)
University of Auckland (New Zealand); The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington (New Zealand)
University of Groningen (The Netherlands)

Electric field control of topologically nontrivial magnetic textures, such as skyrmions, provides a paradigm shift for future spintronics beyond current silicon-based technology. While significant progress has been made by X-ray and neutron scattering studies, direct observation of such nanoscale spin structures and their dynamics driven by external electric fields remains a challenge to understand underlying mechanisms and harness functionalities. Here, using Lorentz transmission electron microscopy combined with in situ electric and magnetic fields at liquid helium temperatures, we report the crystallographic-orientation dependent skyrmion responses to electric fields in thin slabs of magnetoelectric Cu₂OSeO₃. We show electric fields not only stabilize the hexagonally packed skyrmion lattices in the entire sample in a hysteretic manner but also induce the rotation of their reciprocal vector discretely by 30°. Furthermore, the nonvolatile and energy-efficient skyrmion-lattice control by electric fields demonstrated in this work provides an important foundation for designing skyrmion-based qubits and memory devices.

View Accepted Manuscript (DOE)

Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE)

Grant/Contract Number:: SC0012704

OSTI ID:: 2005142

Report Number(s):: BNL--224817-2023-JAAM

Journal Information:: Nano Letters, Journal Name: Nano Letters Journal Issue: 15 Vol. 23; ISSN 1530-6984

Publisher:: American Chemical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
electric field control of magnetism
electric fields
lattices
magnetic properties
magnetoelectric coupling
quantum mechanics
skyrmions
topological spin structures
transmission electron microscopy

Hysteretic Responses of Skyrmion Lattices to Electric Fields in Magnetoelectric Cu2OSeO3

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Hysteretic Responses of Skyrmion Lattices to Electric Fields in Magnetoelectric Cu₂OSeO₃