Fundamentals and applications of the Landau–Lifshitz–Bloch equation

U Atxitia, D Hinzke, U Nowak - Journal of Physics D: Applied …, 2016 - iopscience.iop.org
The influence of thermal excitations on magnetic materials is a topic of increasing relevance
in the theory of magnetism. The Landau–Lifshitz–Bloch equation describes magnetisation …

Polarized phonons carry angular momentum in ultrafast demagnetization

SR Tauchert, M Volkov, D Ehberger, D Kazenwadel… - Nature, 2022 - nature.com
Magnetic phenomena are ubiquitous in nature and indispensable for modern science and
technology, but it is notoriously difficult to change the magnetic order of a material in a rapid …

[HTML][HTML] Heat-assisted magnetic recording—Micromagnetic modeling of recording media and areal density: A review

WH Hsu, RH Victora - Journal of Magnetism and Magnetic Materials, 2022 - Elsevier
Hard disk drives have become the most commonly used mass storage devices because of
their low cost and high storage capacity. However, the current perpendicular magnetic …

Modeling ultrafast demagnetization and spin transport: The interplay of spin-polarized electrons and thermal magnons

M Beens, RA Duine, B Koopmans - Physical Review B, 2022 - APS
We theoretically investigate laser-induced spin transport in metallic magnetic
heterostructures using an effective spin-transport description that treats itinerant electrons …

Energy efficient control of ultrafast spin current to induce single femtosecond pulse switching of a ferromagnet

Q Remy, J Igarashi, S Iihama, G Malinowski… - Advanced …, 2020 - Wiley Online Library
New methods to induce magnetization switching in a thin ferromagnetic material using
femtosecond laser pulses without the assistance of an applied external magnetic field have …

Spin-lattice dynamics model with angular momentum transfer for canonical and microcanonical ensembles

M Strungaru, MOA Ellis, S Ruta, O Chubykalo-Fesenko… - Physical Review B, 2021 - APS
A unified model of molecular and atomistic spin dynamics is presented enabling simulations
both in microcanonical and canonical ensembles without the necessity of additional …

Quantum Brownian motion for magnets

J Anders, CRJ Sait, SAR Horsley - New Journal of Physics, 2022 - iopscience.iop.org
Spin precession in magnetic materials is commonly modelled with the classical
phenomenological Landau–Lifshitz–Gilbert (LLG) equation. Based on a quantized three …

model for local and nonlocal spin dynamics in laser-excited magnetic heterostructures

M Beens, RA Duine, B Koopmans - Physical Review B, 2020 - APS
We discuss a joint microscopic theory for the laser-induced magnetization dynamics and
spin transport in magnetic heterostructures based on the sd interaction. Angular momentum …

Ultrafast demagnetization and precession in permalloy films with varying thickness

SN Panda, S Mondal, S Majumder, A Barman - Physical Review B, 2023 - APS
Excitation by a femtosecond laser pulse is an efficient method to control various ultrafast
spin manipulation processes, eg, ultrafast demagnetization, remagnetization, and dam** …

Bridging atomistic spin dynamics methods and phenomenological models of single-pulse ultrafast switching in ferrimagnets

F Jakobs, U Atxitia - Physical Review B, 2022 - APS
We bridge an essential knowledge gap on the understanding of all-optical ultrafast switching
in ferrimagnets, namely, the connection between atomistic spin dynamics methods and …