Thermal transport in granular metals

Abstract

We study the electron thermal transport in granular metals at large tunnel conductance between the grains, $g_T\gg 1$ and not too low a temperature $T>g_T\delta$, where $\delta$ is the mean energy level spacing for a single grain. Taking into account the electron-electron interaction effects we calculate the thermal conductivity and show that the Wiedemann-Franz law is violated for granular metals. We find that interaction effects suppress the thermal conductivity less than the electrical conductivity.

Replaced with published version

References in corpus (6)

• Coulomb effects in granular materials at not very low temperatures
• Transport properties of granular metals at low temperatures
• A Thermometer for the 2D Electron Gas using 1D Thermopower
• Negative Magnetoresistance of Granular Metals in a Strong Magnetic Field
• Transition from insulating to a non-insulating temperature dependence of the conductivity in granular metals
• Quantum interference and Coulomb interaction in arrays of tunnel junctions

Cited by in corpus (9)

• Granular Electronic Systems
• Violation of the Wiedemann-Franz Law in a Single-Electron Transistor
• On the Lorenz number of multi-band materials
• Thermal transport in a granular metal array
• Thermoelectric and Seebeck coefficients of granular metals
• Relaxation dynamics of the electron distribution in the Coulomb blockade problem
• Heating Effects in a Chain of Quantum Dots
• Influence of the substrate-induced strain and irradiation disorder on the Peierls transition in TTF-TCNQ microdomains
• Mesoscopic electron transport and atomic gases, a review of Frank W. J. Hekking's scientific work