The Magneto-coulomb effect in spin valve devices

TL;DR

This paper investigates how the magneto-coulomb effect influences magnetoconductance in spin valve devices, highlighting its potential to cause significant conductance changes and the importance of distinguishing it from spin accumulation effects.

Contribution

It demonstrates the impact of MCE on magnetoconductance and emphasizes the need to differentiate MCE effects from spin accumulation in spin valve measurements.

Findings

MCE can induce magnetoconductance changes of several percent or more.

MCE-induced magnetoconductance can change sign with gate voltage.

Separating MCE effects from spin accumulation is crucial in spin valve analysis.

Abstract

We discuss the influence of the magneto-coulomb effect (MCE) on the magnetoconductance of spin valve devices. We show that MCE can induce magnetoconductances of several per cents or more, dependent on the strength of the coulomb blockade. Furthermore, the MCE-induced magnetoconductance changes sign as a function of gate voltage. We emphasize the importance of separating conductance changes induced by MCE from those due to spin accumulation in spin valve devices.