Creation of single chiral soliton states in monoaxial helimagnets

Osorio, S.A. ; Laliena, V. (Universidad de Zaragoza) ; Campo, J. ; Bustingorry, S.

Resumen: In monoaxial helimagnets, the Dzyaloshinskii-Moriya interaction favors inhomogeneous distributions of the magnetization with chiral modulations of solitonic character. In addition to the helical magnetic state at zero field, a chiral soliton lattice can be stabilized when a magnetic field perpendicular to the chiral axis is applied. When the magnetic field is increased, the system undergoes a phase transition to the uniform state at a critical field Bc. Above Bc, a single chiral soliton comprises the lowest level excitation over the stable uniform state, surviving as a metastable configuration. How to retain a single chiral soliton metastable state has not been addressed yet. Using micromagnetic simulations, we analyze this possibility by injecting spin polarized currents and put forward a feasible protocol to obtain a state with a single chiral soliton from the chiral soliton lattice. Our proposal could be relevant in the experimental study of metastable solitons for technological applications.

Idioma: Inglés

DOI: 10.1063/5.0067682

Año: 2021

Publicado en: Applied Physics Letters 119, 22 (2021), [7 pp.]
ISSN: 0003-6951

Factor impacto JCR: 3.971 (2021)

Categ. JCR: PHYSICS, APPLIED rank: 50 / 161 = 0.311 (2021) - Q2 - T1

Factor impacto CITESCORE: 6.6 - Physics and Astronomy (Q1)

Factor impacto SCIMAGO: 1.025 - Physics and Astronomy (miscellaneous) (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA/M4
Financiación: info:eu-repo/grantAgreement/ES/MICINN/PGC2018-099024-B-I00

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Matemática Aplicada (Dpto. Matemática Aplicada)