Magnetic memory and current amplification devices using moving domain walls

TL;DR

This paper explores how moving magnetic domain walls can generate emf for reading memory states and amplify currents, enabling potential applications in magnetic memory and logic circuits.

Contribution

It introduces the concept of using moving domain walls for emf generation and current amplification in magnetic devices, a novel approach for magnetic memory and logic.

Findings

Moving domain walls produce measurable emf signals.

Domain wall motion can be used to amplify currents in pulse circuits.

Potential for all-magnetic logic circuits is demonstrated.

Abstract

A moving magnetic domain wall produces an electromotive force (emf). It is therefore possible to read the state of a magnetic memory device via the emf it produces when subject to an interrogation pulse. It is also possible to amplify currents in pulse circuits, opening up the possibility of all magnetic logic circuits.