Comparison of linear and quadratic dispersion models for phonon transport in one-dimensional mass-disordered systems

Thermal conductance, K, of one-dimensional mass-disordered systems is calculated. Two types of dispersion models are considered: linear and quadratic dispersion model. For the linear dispersion model, the thermal conductance shows the super-diffusive nature, which is consistent with the previous res...

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Main Authors:	N. Mori, A. Komada, G. Mil’nikov
Format:	Article
Language:	English
Published:	AIP Publishing LLC 2021-08-01
Series:	APL Materials
Online Access:	http://dx.doi.org/10.1063/5.0058493

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record_format	Article
spelling	doaj-87bd1f7a687e4463945d2904cd0b943e2021-09-03T11:21:06ZengAIP Publishing LLCAPL Materials2166-532X2021-08-0198081112081112-710.1063/5.0058493Comparison of linear and quadratic dispersion models for phonon transport in one-dimensional mass-disordered systemsN. Mori0A. Komada1G. Mil’nikov2Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, JapanGraduate School of Engineering, Osaka University, Suita, Osaka 565-0871, JapanGraduate School of Engineering, Osaka University, Suita, Osaka 565-0871, JapanThermal conductance, K, of one-dimensional mass-disordered systems is calculated. Two types of dispersion models are considered: linear and quadratic dispersion model. For the linear dispersion model, the thermal conductance shows the super-diffusive nature, which is consistent with the previous research. For the quadratic dispersion model, the thermal conductance exhibits the normal-diffusion in which K is inversely proportional to the system size.http://dx.doi.org/10.1063/5.0058493
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	N. Mori A. Komada G. Mil’nikov
spellingShingle	N. Mori A. Komada G. Mil’nikov Comparison of linear and quadratic dispersion models for phonon transport in one-dimensional mass-disordered systems APL Materials
author_facet	N. Mori A. Komada G. Mil’nikov
author_sort	N. Mori
title	Comparison of linear and quadratic dispersion models for phonon transport in one-dimensional mass-disordered systems
title_short	Comparison of linear and quadratic dispersion models for phonon transport in one-dimensional mass-disordered systems
title_full	Comparison of linear and quadratic dispersion models for phonon transport in one-dimensional mass-disordered systems
title_fullStr	Comparison of linear and quadratic dispersion models for phonon transport in one-dimensional mass-disordered systems
title_full_unstemmed	Comparison of linear and quadratic dispersion models for phonon transport in one-dimensional mass-disordered systems
title_sort	comparison of linear and quadratic dispersion models for phonon transport in one-dimensional mass-disordered systems
publisher	AIP Publishing LLC
series	APL Materials
issn	2166-532X
publishDate	2021-08-01
description	Thermal conductance, K, of one-dimensional mass-disordered systems is calculated. Two types of dispersion models are considered: linear and quadratic dispersion model. For the linear dispersion model, the thermal conductance shows the super-diffusive nature, which is consistent with the previous research. For the quadratic dispersion model, the thermal conductance exhibits the normal-diffusion in which K is inversely proportional to the system size.
url	http://dx.doi.org/10.1063/5.0058493
work_keys_str_mv	AT nmori comparisonoflinearandquadraticdispersionmodelsforphonontransportinonedimensionalmassdisorderedsystems AT akomada comparisonoflinearandquadraticdispersionmodelsforphonontransportinonedimensionalmassdisorderedsystems AT gmilnikov comparisonoflinearandquadraticdispersionmodelsforphonontransportinonedimensionalmassdisorderedsystems
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Comparison of linear and quadratic dispersion models for phonon transport in one-dimensional mass-disordered systems

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