# Half-Metallic Ferromagnets and Spin Gapless Semiconductors

## TL;DR

This paper reviews experimental and theoretical research on half-metallic ferromagnets and spin gapless semiconductors, focusing on their transport properties and the role of electron-magnon scattering.

## Contribution

It provides a comprehensive overview of the current understanding of HMF and SGS, highlighting the significance of non-quasiparticle states in their transport behavior.

## Key findings

- Resistivity and magnetoresistivity data for HMF and SGS
- Role of electron-magnon scattering in transport properties
- Analysis of low-temperature resistivity mechanisms

## Abstract

A brief review of experimental and theoretical studies of half-metallic ferromagnets (HMF) and spin gapless semiconductors (SGS) is given. The data on resistivity and magnetoresistivity are presented. An important role of non-quasiparticle states owing to electron-magnon scattering in transport properties is discussed. The problem of low-temperature resistivity in HMF is treated in terms of one-magnon and two-magnon scattering processes.

---
Source: https://tomesphere.com/paper/1902.08972