Half-Metallic Antiferromagnet as a Prospective Material for Spintronics

TL;DR

This paper discusses the potential of half-metallic antiferromagnets as promising materials for spintronics due to their unique spin properties and zero macroscopic magnetization, highlighting ongoing research efforts.

Contribution

It reviews the characteristics and advantages of half-metallic antiferromagnets, emphasizing their potential for spintronic applications and summarizing current research efforts.

Findings

Half-metallic antiferromagnets can generate fully spin-polarized currents.

They exhibit zero macroscopic magnetization despite spin polarization.

Research efforts are focused on discovering and understanding these materials.

Abstract

Spintronics is expected as the next-generation technology based on the novel notch of spin degree of freedom of electrons. Half metals, a class of materials which behave as a metal in one spin direction and an insulator in the opposite spin direction, are ideal for spintronic applications. Half metallic antiferromagnets as a subclass of half metals are characterized further by totally compensated spin moments in a unit cell, and have the advantage of being able to generate fully spin-polarized current while exhibiting zero macroscopic magnetization. Considerable efforts have been devoted to the search for this novel material, from which we may get useful hints for prospective material exploration.