1.

Record Nr.

UNINA9910300548403321

Autore

Torres Alvarez Pol

Titolo

Thermal Transport in Semiconductors : First Principles and Phonon Hydrodynamics / / by Pol Torres Alvarez

Pubbl/distr/stampa

Cham : , : Springer International Publishing : , : Imprint : Springer, , 2018

ISBN

3-319-94983-7

Edizione

[1st ed. 2018.]

Descrizione fisica

1 online resource (XV, 163 p. 88 illus., 58 illus. in color.)

Collana

Springer Theses, Recognizing Outstanding Ph.D. Research, , 2190-5053

Disciplina

537.622

Soggetti

Semiconductors

Thermodynamics

Statistical physics

Nanotechnology

Statistical Physics and Dynamical Systems

Nanotechnology and Microengineering

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di contenuto

Introduction -- Thermal Transport -- First Principles Calculations -- Thermal Transport of Bulk Semiconductors in the KCM -- Low Dimension Thermal Conductivity in the KCM -- Phonon Spectrum and Transient Regimes in the KCM -- Geometric Effects in Complex Experiments -- Conclusions.

Sommario/riassunto

Starting from a broad overview of heat transport based on the Boltzmann Transport Equation, this book presents a comprehensive analysis of heat transport in bulk and nanomaterials based on a kinetic-collective model (KCM). This has become key to understanding the field of thermal transport in semiconductors, and represents an important stride. The book describes how heat transport becomes hydrodynamic at the nanoscale, propagating very much like a viscous fluid and manifesting vorticity and friction-like behavior. It introduces a generalization of Fourier’s law including a hydrodynamic term based on collective behavior in the phonon ensemble. This approach makes it possible to describe in a unifying way recent experiments that had to



resort to unphysical assumptions in order to uphold the validity of Fourier’s law, demonstrating that hydrodynamic heat transport is a pervasive type of behavior in semiconductors at reduced scales. .