Magnetic domain walls : Types, processes and applications

TL;DR

This review discusses the various types of magnetic domain walls in nanowires, their manipulation methods, and their potential applications in computing, sensing, and biomedical fields, highlighting current advancements and challenges.

Contribution

It provides a comprehensive overview of domain wall types, manipulation techniques, and applications, offering insights into technological feasibility and future challenges.

Findings

Diverse domain wall types and control methods are identified.

Applications in logic, memory, and sensing are actively developed.

Current challenges include technological limitations and control precision.

Abstract

Domain walls (DWs) in magnetic nanowires are promising candidates for a variety of applications including Boolean/unconventional logic, memories, in-memory computing as well as magnetic sensors and biomagnetic implementations. They show rich physical behaviour and are controllable using a number of methods including magnetic fields, charge and spin currents and spin-orbit torques. In this review, we detail types of domain walls in ferromagnetic nanowires and describe processes of manipulating their state. We look at the state of the art of DW applications and give our take on the their current status, technological feasibility and challenges.