RT info:eu-repo/semantics/article
T1 Self-consistent description of spin-phonon dynamics in ferromagnets
A1 Nieves Cordones, Pablo
A1 Serantes, D.
A1 Chubykalo Fesenko, O.
K1 Física
K1 Physics
AB Several recently reported exciting phenomena such as spin caloritronics or ultrafast laser-induced spin dynamicsinvolve the action of temperature on spin dynamics. However, the inverse effect of magnetization dynamics ontemperature change is very frequently ignored. Based on the density matrix approach, in this work we derivea self-consistent model for describing the magnetization and phonon temperature dynamics in ferromagnetsin the framework of the quantum Landau-Lifshitz-Bloch equation. We explore potential applicability of ourapproach for two cases, inspired by magnetocaloric effect and magnetic fluid hyperthermia. In the first case, thespin-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 individualnanoparticles well below the Curie temperature.
PB American Physical Society
SN 2469-9950
YR 2016
FD 2016-07
LK http://hdl.handle.net/10259/5711
UL http://hdl.handle.net/10259/5711
LA eng
DS Repositorio Institucional de la Universidad de Burgos
RD 23-nov-2024