Dissipation and diffusion in one-dimensional solids

Harshitra Mahalingam

doi:10.1103/PhysRevResearch.5.033044

Dissipation and diffusion in one-dimensional solids

2023-07-25

3

OA

AI

DOI：10.1103/PhysRevResearch.5.033044

Original

Original request for help

Save

Abstract

En 中文

Using a nonperturbative classical model for ionic motion through one-dimensional (1D) solids, we explore how thermal lattice vibrations affect ionic transport properties. Based on analytic and numerical calculations, we find that the mean dissipation experienced by the mobile ion is similar to that of the nonthermal case, with thermal motion only contributing stochastic noise. A nonmonotonic dependence of drag on speed, predicted in earlier work, persists in the presence of thermal motion. The inverse relation between drag and speed at high speeds results in non-Fickian diffusion dominated by Levy flights. This suppression of drag at high speeds, combined with enhanced activation frequency, improves the particle mobility at high temperatures, where typical particles move faster.

Keywords:

IONIC-CONDUCTIVITY

ELECTROLYTES

Dissipation and diffusion in one-dimensional solids

Abstract

Journal

Organization