A Holographic Realization of Ferromagnets
Naoto Yokoi, Masafumi Ishihara, Koji Sato, and Eiji Saitoh
TL;DR
This paper develops a holographic model for ferromagnets that captures thermodynamic properties and phase transition behavior, aligning with mean field theory and including low-temperature excitations.
Contribution
It introduces a novel holographic framework for ferromagnets, connecting gravitational duals with magnetic phenomena and thermodynamics.
Findings
Reproduces mean field theory near critical temperature
Automatically incorporates spin wave and conduction electron effects at low temperatures
Provides thermodynamic quantities like magnetization and susceptibility
Abstract
A holographic realization for ferromagnetic systems has been constructed. Owing to the holographic dictionary proposed on the basis of this realization, we obtained relevant thermodynamic quantities such as magnetization, magnetic susceptibility, and free energy. This holographic model reproduces the behavior of the mean field theory near the critical temperature. At low temperatures, the results automatically incorporate the contributions from spin wave excitations and conduction electrons.
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