Dual-Threshold Percolation

TL;DR

This paper discusses the existence of dual percolation thresholds in disordered media affecting thermoelectric and galvanomagnetic effects, with critical behavior described by universal indexes.

Contribution

It introduces the concept of dual percolation thresholds and analyzes their impact on effective kinetic coefficients in disordered media.

Findings

Identification of two distinct percolation thresholds affecting physical properties.

Critical dependence of kinetic coefficients near thresholds.

Universal critical indexes describe the behavior close to thresholds.

Abstract

For thermoelectric, galvanomagnetic and some other effects there may simultaneously exist two percolation thresholds, close to which the effective kinetic coefficients of macroscopically disordered media are critically dependent on the proximity to percolation thresholds, their behavior being described by universal critical indexes.