Frequency-dependent phonon mean free path in carbon nanotubes from nonequilibrium molecular dynamics
نویسندگان
چکیده
منابع مشابه
Evaluation of the Phonon Mean Free Path in Thin Films by using Classical Molecular Dynamics
A non-equilibrium molecular dynamic (NEMD) study has been performed to evaluate the phonon mean free path (MFP) of a solid material. Solid argon with a Lennard-Jones (L-J) potential is selected as a simulation material. The thermal conductivity of a thin film plays an important role in the design of nano-electro-mechanical systems (NEMS) or micro-electro-mechanical systems (MEMS) since heat rem...
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Ken-ichi Sasaki,1 Riichiro Saito,1 Gene Dresselhaus,2 Mildred S. Dresselhaus,3,4 Hootan Farhat,5 and Jing Kong4 1Department of Physics, Tohoku University and CREST-JST, Sendai 980-8578, Japan 2Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA 3Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02...
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Thermal conductivity measurements over variable lengths on nanostructures such as nanowires provide important information about the mean free paths (MFPs) of the phonons responsible for heat conduction. However, nearly all of these measurements have been interpreted using an average MFP even though phonons in many crystals possess a broad MFP spectrum. Here, we present a reconstruction method t...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2015
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.91.115426