Nuclear spin effect in metallic spin valve

TL;DR

This paper investigates how hyperfine interactions between electrons and nuclei influence electronic transport in a ferromagnet-normal-metal-ferromagnet system, revealing observable effects of nuclear spin precession on current behavior.

Contribution

It introduces the study of nuclear spin effects on electronic transport in a specific spin valve system, highlighting the impact of nuclear spin precession on current.

Findings

Nuclear spin precession significantly affects electronic current.

Magnetization switching induces observable nuclear spin dynamics.

Hyperfine interactions can be detected through transport measurements.

Abstract

We study electronic transport through a ferromagnet normal-metal ferromagnet system and we investigate the effect of hyperfine interaction between electrons and nuclei in the normal-metal part. A switching of the magnetization directions of the ferromagnets causes nuclear spins to precess. We show that the effect of this precession on the current through the system is large enough to be observed in experiment.