Heat and particle transport in a one-dimensional hard-point gas model with on-site potential

Heat and particle transport in a one-dimensional hard-point gas model with on-site potential

Heat and particle transport in a one-dimensional hard-point gas of elastically colliding particles are studied. In the nonequal mass case, due to the presence of on-site potential, the heat conduction of the model obeys the Fourier law and all the transport coefficients asymptotically approach const...

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Main Author: Lei Wang
Format: Article
Language:English
Published: AIP Publishing LLC 2015-05-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4913995
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spelling doaj-236adc0d78f249a481a7d98b394d536b2020-11-24T21:27:45ZengAIP Publishing LLCAIP Advances2158-32262015-05-0155053201053201-1110.1063/1.4913995004598ADVHeat and particle transport in a one-dimensional hard-point gas model with on-site potentialLei Wang0Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials and Micro-nano Devices, Renmin University of China, Beijing 100872, People’s Republic of ChinaHeat and particle transport in a one-dimensional hard-point gas of elastically colliding particles are studied. In the nonequal mass case, due to the presence of on-site potential, the heat conduction of the model obeys the Fourier law and all the transport coefficients asymptotically approach constants in the thermodynamic limit. The thermoelectric figure of merit ZT increases slowly with the system length L and is proportional to the height of the potential barriers H in high H regime. These findings may serve as a guide for future theoretical and experimental studies.http://dx.doi.org/10.1063/1.4913995
collection DOAJ
language English
format Article
sources DOAJ
author Lei Wang
spellingShingle Lei Wang
Heat and particle transport in a one-dimensional hard-point gas model with on-site potential
AIP Advances
author_facet Lei Wang
author_sort Lei Wang
title Heat and particle transport in a one-dimensional hard-point gas model with on-site potential
title_short Heat and particle transport in a one-dimensional hard-point gas model with on-site potential
title_full Heat and particle transport in a one-dimensional hard-point gas model with on-site potential
title_fullStr Heat and particle transport in a one-dimensional hard-point gas model with on-site potential
title_full_unstemmed Heat and particle transport in a one-dimensional hard-point gas model with on-site potential
title_sort heat and particle transport in a one-dimensional hard-point gas model with on-site potential
publisher AIP Publishing LLC
series AIP Advances
issn 2158-3226
publishDate 2015-05-01
description Heat and particle transport in a one-dimensional hard-point gas of elastically colliding particles are studied. In the nonequal mass case, due to the presence of on-site potential, the heat conduction of the model obeys the Fourier law and all the transport coefficients asymptotically approach constants in the thermodynamic limit. The thermoelectric figure of merit ZT increases slowly with the system length L and is proportional to the height of the potential barriers H in high H regime. These findings may serve as a guide for future theoretical and experimental studies.
url http://dx.doi.org/10.1063/1.4913995
work_keys_str_mv AT leiwang heatandparticletransportinaonedimensionalhardpointgasmodelwithonsitepotential
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