Noise spectroscopy of a single spin with spin polarized STM

TL;DR

This paper demonstrates that analyzing noise in a spin-polarized STM tunneling current provides detailed spectroscopic insights into the temporal susceptibility of a single magnetic atom on a non-magnetic surface.

Contribution

It introduces a novel noise spectroscopy method using spin-polarized STM to probe single-atom magnetic dynamics.

Findings

Noise in tunneling current reveals atom's magnetic susceptibility.

Method enables spectroscopic analysis at the single-atom level.

Provides a new tool for studying magnetic properties of individual atoms.

Abstract

We show how the noise in a spin polarized STM tunneling current gives valuable spectroscopic information on the temporal susceptibility of a single magnetic atom residing on a non-magnetic surface.