Thermal fluctuations in the conical state of monoaxial helimagnets
Laliena, V. ; Kato, Y. ; Albalate, G. ; Campo, J. (Universidad de Zaragoza)
Resumen: The effect of thermal fluctuations on the phase structure of monoaxial helimagnets with external magnetic field parallel to the chiral axis is analyzed by means of a saddle point expansion of the free energy. The phase transition that separates the conical and forced ferromagnetic phases is changed to first order by the thermal fluctuations. In a purely monoaxial system the pitch of the conical state remains independent of temperature and magnetic field, as in mean-field theory, even when fluctuations are taken into account. However, in the presence of weak Dzyaloshinskii-Moriya interactions in the plane perpendicular to the chiral axis, thermal fluctuations induce a dependence of the pitch on temperature and magnetic field. This may serve to determine the nature of magnetic interactions in such systems.
Idioma: Inglés
DOI: 10.1103/PhysRevB.98.144445
Año: 2018
Publicado en: Physical Review B 98, 14 (2018), 144445 [10 pp]
ISSN: 2469-9950
Factor impacto SCIMAGO: 1.502 - Electronic, Optical and Magnetic Materials (Q1) - Condensed Matter Physics (Q1)
Financiación: info:eu-repo/grantAgreement/ES/MINECO/MAT2015-68200-C2-2-P
Tipo y forma: Article (Published version)
Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes.
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Idioma: Inglés
DOI: 10.1103/PhysRevB.98.144445
Año: 2018
Publicado en: Physical Review B 98, 14 (2018), 144445 [10 pp]
ISSN: 2469-9950
Factor impacto SCIMAGO: 1.502 - Electronic, Optical and Magnetic Materials (Q1) - Condensed Matter Physics (Q1)
Financiación: info:eu-repo/grantAgreement/ES/MINECO/MAT2015-68200-C2-2-P
Tipo y forma: Article (Published version)
Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. Exportado de SIDERAL (2020-01-17-21:23:11)
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Articles > Artículos por área > Física de la Materia Condensada
Record created 2018-12-19, last modified 2020-01-17