Interface and Strain Effects on The Thermal Conductivity of Heterostructures : A Molecular Dynamics Study  

Oleh:

Majumdar, Arun ; Abramson, Alexis R. ; Tien, Chang-Lin

Jenis: Article from Bulletin/Magazine
Dalam koleksi: Journal of Heat Transfer vol. 124 no. 5 (Oct. 2002), page 963-970.
Topik: thermal conductivity; interface; strain effects; thermal conductivity; heterostructres; molecular dynamics

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ90.5 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Molecular dynamics simulations are used to examine how thermal transport is affected by the presence of one or more interfaces. Parameters such as film thickness, the ratio of respective material composition, the number of interfaces per unit length, and lattice strain are considered. Results indicate that for simple nanoscale strained heterostructures containing a single interface, the effective thermal conductivity may be less than half the value of an average of the thermal conductivities of the respective unstrained thin films. Increasing the number of interfaces per unit length, however, does not necessarily result in a corresponding decrease in the effective thermal conductivity of the superlattice.

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