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DS: Fachverband Dünne Schichten

DS 61: Thermoelectric Materials, Thin Films, and Nanostructures III (Focused Session -- Organisers: Nielsch, Rastelli, Balke)

DS 61.1: Vortrag

Freitag, 18. März 2011, 16:00–16:15, GER 37

Phonon transport calculations across interfaces using non equilibrium Green’s function formalism — •Saeideh Edalati Boostan, Michael Bachmann, Michael Czerner, and Christian Heiliger — I. Physikalisches Institut, Justus Liebig University Giessen, D-35392, Germany

Modern electronic devices are rapidly approaching nanometer scales, and heat transport in these systems, particularly across embedded interfaces, is critical to their performance. In this work we present a phonon transport model that can calculate heat flow in layered structured systems. We perform ab initio calculations using the abinit package to obtain the interatomic force constants [1]. These force constants are plugged into a non equilibrium Green’s function formalism to calculate the transmission function and the temperature dependence of thermal conductivity in the linear ballistic response regime [2, 3].

http://www.abinit.org
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