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    Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10259/5711

    Título
    Self-consistent description of spin-phonon dynamics in ferromagnets
    Autor
    Nieves Cordones, PabloAutoridad UBU Orcid
    Serantes, D.
    Chubykalo Fesenko, O.
    Publicado en
    Physical Review B. 2016, V. 94, n. 1, 014111
    Editorial
    American Physical Society
    Fecha de publicación
    2016-07
    ISSN
    2469-9950
    DOI
    10.1103/PhysRevB.94.014409
    Résumé
    Several recently reported exciting phenomena such as spin caloritronics or ultrafast laser-induced spin dynamics involve the action of temperature on spin dynamics. However, the inverse effect of magnetization dynamics on temperature change is very frequently ignored. Based on the density matrix approach, in this work we derive a self-consistent model for describing the magnetization and phonon temperature dynamics in ferromagnets in the framework of the quantum Landau-Lifshitz-Bloch equation. We explore potential applicability of our approach for two cases, inspired by magnetocaloric effect and magnetic fluid hyperthermia. In the first case, the spin-phonon dynamics is governed by the longitudinal relaxation in bulk systems close to the Curie temperature; while in the second case it is described by the transverse relaxation during the hysteresis cycle of individual nanoparticles well below the Curie temperature.
    Materia
    Física
    Physics
    URI
    http://hdl.handle.net/10259/5711
    Versión del editor
    https://doi.org/10.1103/PhysRevB.94.014409
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    Nieves-prb_2016.pdf
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