# Fast and accurate shot noise measurements on atomic-size junctions in the MHz regime

## TL;DR

This paper introduces a high-frequency, high-bias measurement technique for shot noise in atomic-scale junctions, enabling detailed analysis of quantum transport and dissipation at the nanoscale.

## Contribution

It presents a novel measurement method that extends shot noise analysis to the MHz regime with improved accuracy and diagnostic capabilities.

## Key findings

- Extended noise measurements to higher frequencies and biases.
- Enhanced understanding of inelastic scattering in quantum transport.
- Improved diagnostic tools for nanoscale dissipation.

## Abstract

Shot noise measurements on atomic and molecular junctions provide rich information about the quantum transport properties of the junctions and on the inelastic scattering events taking place in the process. Dissipation at the nanoscale, a problem of central interest in nano-electronics, can be studied in its most explicit and simplified form. Here, we describe a measurement technique that permits extending previous noise measurements to a much higher frequency range, and to much higher bias voltage range, while maintaining a high accuracy in noise and conductance. We also demonstrate the advantages of having access to the spectral information for diagnostics.