Direct relation between the excess current noise spectral density and the complex conductivity of disordered conductor

TL;DR

This paper establishes a fundamental link between excess current noise spectral density and the imaginary part of complex conductivity in disordered conductors, providing new insights into their electronic properties.

Contribution

It introduces a direct relation between excess current noise and complex conductivity, advancing understanding of disordered conductors' electronic behavior.

Findings

Derived a fundamental relationship between noise spectral density and complex conductivity.

Provides a theoretical framework for analyzing noise in disordered conductors.

Enhances interpretation of experimental noise measurements in electronic materials.

Abstract

We put forward a fundamental relationship between the normalized spectral density of excess current noise and the imaginary part of complex conductivity.