Cross-plane thermal conductivity of self-assembled Ge quantum dot superlattices

J. L. Liu; A. Khitun; K. L. Wang; W. L. Liu; G. Chen; Q. H. Xie; S. G. Thomas

doi:10.1103/PhysRevB.67.165333

Cross-plane thermal conductivity of self-assembled Ge quantum dot superlattices

J. L. Liu, A. Khitun, K. L. Wang, W. L. Liu, G. Chen, Q. H. Xie, S. G. Thomas

College of Electrical Engineering and Computer Science

Research output: Contribution to journal › Article › peer-review

46 Citations (Scopus)

Abstract

We report the temperature dependent cross-plane thermal conductivities of Ge quantum dot superlattices measured by the 3ω method. A large reduction in the thermal conductivity of the superlattices compared with that of bulk materials is observed. A simple model taking into account the relaxation time approximation, including phonon scattering on quantum dots, well explains the experimental data.

Original language	English
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	67
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevB.67.165333
Publication status	Published - 2003 Apr 30

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.67.165333

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abstract = "We report the temperature dependent cross-plane thermal conductivities of Ge quantum dot superlattices measured by the 3ω method. A large reduction in the thermal conductivity of the superlattices compared with that of bulk materials is observed. A simple model taking into account the relaxation time approximation, including phonon scattering on quantum dots, well explains the experimental data.",

author = "Liu, {J. L.} and A. Khitun and Wang, {K. L.} and Liu, {W. L.} and G. Chen and Xie, {Q. H.} and Thomas, {S. G.}",

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AU - Liu, J. L.

AU - Khitun, A.

AU - Wang, K. L.

AU - Liu, W. L.

AU - Chen, G.

AU - Xie, Q. H.

AU - Thomas, S. G.

PY - 2003/4/30

Y1 - 2003/4/30

N2 - We report the temperature dependent cross-plane thermal conductivities of Ge quantum dot superlattices measured by the 3ω method. A large reduction in the thermal conductivity of the superlattices compared with that of bulk materials is observed. A simple model taking into account the relaxation time approximation, including phonon scattering on quantum dots, well explains the experimental data.

AB - We report the temperature dependent cross-plane thermal conductivities of Ge quantum dot superlattices measured by the 3ω method. A large reduction in the thermal conductivity of the superlattices compared with that of bulk materials is observed. A simple model taking into account the relaxation time approximation, including phonon scattering on quantum dots, well explains the experimental data.

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Cross-plane thermal conductivity of self-assembled Ge quantum dot superlattices

Abstract

All Science Journal Classification (ASJC) codes

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