Title
Kapitza Conductance Of Silicon-Amorphous Polyethylene Interfaces By Molecular Dynamics Simulations
Abstract
We use nonequilibrium molecular dynamics simulation to elucidate the interfacial thermal conductance between single-crystal silicon and amorphous polyethylene. In particular, we investigate the role of solid stiffness and the bonding strength across the interface on the interfacial thermal conductance. Simulations of interfacial scattering of individual phonon wave packets indicate that neither diffuse mismatch model nor acoustic mismatch model describes the interfacial scattering process quantitatively. In general, transmission coefficients for longitudinal phonons are significantly higher than those for transverse phonons. We also observe that anharmonic processes can be important for interfacial conductance. © 2009 The American Physical Society.
Publication Date
3-3-2009
Publication Title
Physical Review B - Condensed Matter and Materials Physics
Volume
79
Issue
10
Number of Pages
-
Document Type
Article
Personal Identifier
scopus
DOI Link
https://doi.org/10.1103/PhysRevB.79.104305
Copyright Status
Unknown
Socpus ID
65249114714 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/65249114714
STARS Citation
Hu, Ming; Keblinski, Pawel; and Schelling, Patrick K., "Kapitza Conductance Of Silicon-Amorphous Polyethylene Interfaces By Molecular Dynamics Simulations" (2009). Scopus Export 2000s. 12010.
https://stars.library.ucf.edu/scopus2000/12010