A hydrodynamical model of heat transfer with phonons and electrons is applied to infer the steady-state temperature profile in a Bi2Te3 nanowire. Our analysis is concerned with systems which allow for different temperatures of phonons and electrons. Along with the approach of the kinetic theory, the phonons and the electrons are regarded as a gas-like mixture flowing through the crystal lattice. The coupling between phonons and electrons is taken into account by an additional term in the partial balances of energy of the components of the mixture. The compatibility of the model with the second law of thermodynamics is investigated in view of the requirement of positive entropy production, and of a nonlocal constitutive equation for the entropy flux.

Phonon-electron coupling and nonlocal heat transport in Bi2Te3 nanowires

I. Carlomagno
Writing – Original Draft Preparation
;
A. Sellitto
Writing – Original Draft Preparation
2019-01-01

Abstract

A hydrodynamical model of heat transfer with phonons and electrons is applied to infer the steady-state temperature profile in a Bi2Te3 nanowire. Our analysis is concerned with systems which allow for different temperatures of phonons and electrons. Along with the approach of the kinetic theory, the phonons and the electrons are regarded as a gas-like mixture flowing through the crystal lattice. The coupling between phonons and electrons is taken into account by an additional term in the partial balances of energy of the components of the mixture. The compatibility of the model with the second law of thermodynamics is investigated in view of the requirement of positive entropy production, and of a nonlocal constitutive equation for the entropy flux.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11386/4717838
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 6
  • ???jsp.display-item.citation.isi??? 6
social impact