Anisotropic thermal conductivity of a Si/Ge quantum dot superlattice

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作者
Borca-Tasciuc, Theodorian
Liu, Weili
Liu, Jianlin
Wang, Kang L.
Chen, Gang
机构
[1] Mech. and Aerosp. Eng. Department, University of California, Los Angeles, CA 90095-1597, United States
[2] Department of Electrical Engineering, University of California, Los Angeles, CA 90095-1597, United States
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摘要
In this work, we present experimental results on the in-plane and cross-plane thermal conductivity characterization of a Si/Ge quantum-dots superlattice structure. The quantum-dots superlattice was grown by molecular-beam-epitaxy and self-organization. The anisotropic thermal conductivity measurements are performed by a differential two-wire 3ω method. The measured in-plane and cross-plane thermal conductivity values show a different temperature behavior. The results are compared and explained with heat transport models in superlattices.
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页码:381 / 384
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