# Cavity mediated manipulation of distant spin currents using cavity-magnon-polariton

## TL;DR

This paper demonstrates long-distance manipulation of spin currents via a cavity-magnon-polariton system, enabling control over several centimeters and advancing cavity spintronic device capabilities.

## Contribution

It introduces a method for manipulating spin currents at large distances using cavity-magnon-polaritons, surpassing traditional spin diffusion limitations.

## Key findings

- Spin currents can be controlled over several centimeters.
- Long-distance control depends on the interplay of local and global system properties.
- The approach enhances the potential for cavity spintronic devices.

## Abstract

Using electrical detection of a strongly coupled spin-photon system comprised of a microwave cavity mode and two magnetic samples, we demonstrate the long distance manipulation of spin currents. This distant control is not limited by the spin diffusion length, instead depending on the interplay between the local and global properties of the coupled system, enabling systematic spin current control over large distance scales (several centimeters in this work). This flexibility opens the door to improved spin current generation and manipulation for cavity spintronic devices.