Magnetization Dynamics in Holographic Ferromagnets: Landau-Lifshitz Equation from Yang-Mills Fields
High Energy Physics - Theory
2019-11-27 v1 Mesoscale and Nanoscale Physics
Strongly Correlated Electrons
General Relativity and Quantum Cosmology
Abstract
We introduce a new approach to understand magnetization dynamics in ferromagnets based on the holographic realization of ferromagnets. A Landau-Lifshitz equation describing the magnetization dynamics is derived from a Yang-Mills equation in the dual gravitational theory, and temperature dependences of the spin-wave stiffness and spin transfer torque appearing in the holographic Landau-Lifshitz equation are investigated by the holographic approach. The results are consistent with the known properties of magnetization dynamics in ferromagnets with conduction electrons.
Keywords
Cite
@article{arxiv.1907.12306,
title = {Magnetization Dynamics in Holographic Ferromagnets: Landau-Lifshitz Equation from Yang-Mills Fields},
author = {Naoto Yokoi and Koji Sato and Eiji Saitoh},
journal= {arXiv preprint arXiv:1907.12306},
year = {2019}
}
Comments
18 pages, 2 figures