Thermal conductivity of regularly spaced amorphous/crystalline silicon superlattices. A molecular dynamics study

Abstract : The thermal transport in amorphous/crystalline silicon superlattices with means of molecular dynamics is presented in the current study. The procedure used to build such structures is discussed. Then, thermal conductivity of various samples is studied as a function of the periodicity of regular superlattices and of the applied temperature. Preliminarily results show that for regular amorphous/crystalline superlattices, the amorphous regions control the heat transfer within the structures. Secondly, in the studied cases thermal conductivity weakly varies with the temperature. This, points out the presence of a majority of non-propagating vibrational modes in such systems.
Type de document :
Communication dans un congrès
MRS Spring Meeting, Apr 2013, San Francisco, CA, United States. 1543, pp.71 - 79, MRS Proceedings. 〈10.1557/opl.2013.671〉
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Soumis le : lundi 23 janvier 2017 - 11:51:51
Dernière modification le : dimanche 8 juillet 2018 - 17:32:02

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Konstantinos Termentzidis, Arthur France-Lanord, Etienne Blandre, Tristan Albaret, Samy Merabia, et al.. Thermal conductivity of regularly spaced amorphous/crystalline silicon superlattices. A molecular dynamics study. MRS Spring Meeting, Apr 2013, San Francisco, CA, United States. 1543, pp.71 - 79, MRS Proceedings. 〈10.1557/opl.2013.671〉. 〈hal-01443642〉

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