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Cross-plane thermal conductivity reduction of vertically uncorrelated quantum dot superlattices
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10.1063/1.2957038
/content/aip/journal/apl/93/1/10.1063/1.2957038
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/1/10.1063/1.2957038

Figures

Image of FIG. 1.
FIG. 1.

Temperature rise as a function of modulated frequency at for the correlated and uncorrelated Ge QDSL and the reference sample.

Image of FIG. 2.
FIG. 2.

(a) Measured thermal conductivity as a function of temperature for sample 52 with vertically aligned dots (solid blue symbols) and without vertical correlation (open red symbols). Also shown are results of calculations using the extended Fourier heat transport equation (solid line). The inset shows sketches of the QDSL nanostructures with and without vertical correlation. Black squares represent the Ge dots, whereas gray regions correspond to the Ge wetting layer. White regions represent the Si spacer. (b) Measured Raman spectra (Ref. 14) of the corresponding samples in (a).

Tables

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Table I.

Main characteristics of the MBE samples.

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/content/aip/journal/apl/93/1/10.1063/1.2957038
2008-07-09
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Cross-plane thermal conductivity reduction of vertically uncorrelated Ge∕Si quantum dot superlattices
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/1/10.1063/1.2957038
10.1063/1.2957038
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