Magnetization dynamics at elevated temperatures
arXiv:1205.6506 · doi:10.1016/j.physe.2012.07.010
Abstract
By using the quantum kinetic approach with the instantaneous local equilibrium approximation, we propose an equation that is capable of addressing magnetization dynamics for a wide range of temperatures. The equation reduces to the Landau-Lifshitz equation at low temperatures and to the paramagnetic Bloch equation at high temperatures. Near the Curie temperature, the magnetization reversal and dynamics depend on both transverse and longitudinal relaxations. We further include the stochastic fields in the dynamic equation in order to take into account fluctuation at high temperatures. Our proposed equation may be broadly used for modeling laser pump-probe experiments and heat assisted magnetic recording.
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Cited by in corpus (6)
- Quantum Landau-Lifshitz-Bloch equation and its comparison with the classical case
- Dynamics of single-domain magnetic particles at elevated temperatures
- Ultrafast magnetization reversal in ferromagnetic spin-valves: an s-d model perspective
- Thermal Fluctuations In The Landau-Lifshitz-Bloch Model
- Derivation of a time dependent Schrödinger equation as quantum mechanical Landau-Lifshitz-Bloch equation
- Hidden-anisotropy-induced phase shift in all-optical magnetization precession