A unified equation for saturation magnetization and spin transport in weakly disordered ferromagnets

TL;DR

This paper presents a unified theoretical framework for understanding saturation magnetization loss and spin transport in weakly disordered ferromagnets, based on a generalized Bloch equation.

Contribution

It introduces a novel unified model that simultaneously describes magnetization loss and spin transport in weakly disordered spin-1/2 ferromagnets.

Findings

Derived a unified Bloch equation for these systems.

Provided a unified expression for spin transport.

Enhanced understanding of disorder effects in ferromagnets.

Abstract

In this report, a unified description of the loss of saturation magnetization in the presence of a distribution of finite-size effects is provided for weakly disordered spin-1/2 ferromagnets. This description allows us to derive a unified form of the Bloch equation for these systems. We further extend this approach to obtain a unified expression for spin transport in such systems.