Multiferroic skyrmions in BiFeO_{3}

Autor: Z. Li, T. Chirac, J. Tranchida, V. Garcia, S. Fusil, V. Jacques, J.-Y. Chauleau, M. Viret
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Physical Review Research, Vol 5, Iss 4, p 043109 (2023)
Druh dokumentu: article
ISSN: 2643-1564
DOI: 10.1103/PhysRevResearch.5.043109
Popis: We show here using atomistic simulations that BiFeO_{3} films can be driven through a topological transition when increasing uniaxial anisotropy, which can possibly be achieved by strain. Tuning the anisotropy close to the transition, we show that individual antiferromagnetic skyrmions can reach a very large topological protection. These entities can then be excited by electric fields and spin torque and controllably driven at speeds exceeding 10 km/s.
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