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Author Chen, Gang
Sponsorship (US)
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Publisher The American Physical Society
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ BOLTZMANN EQUATION ♦ MEAN FREE PATH ♦ RELAXATION TIME ♦ THICKNESS
Abstract We present new heat-conduction equations, named ballistic-diffusive equations, which are derived from the Boltzmann equation. We show that the new equations are a better approximation than the Fourier law and the Cattaneo equation for heat conduction at the scales when the device characteristic length, such as film thickness, is comparable to the heat-carrier mean free path and/or the characteristic time, such as laser-pulse width, is comparable to the heat-carrier relaxation time.
ISSN 00319007
Educational Use Research
Learning Resource Type Article
Publisher Date 2001-03-12
Publisher Place United States
Journal Physical Review Letters
Volume Number 86
Issue Number 11


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