Regensburg 2016 – scientific programme

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DS: Fachverband Dünne Schichten

DS 15: Thermoelectric Materials

DS 15.8: Talk

Tuesday, March 8, 2016, 11:45–12:00, H8

Calculation of thermal conductivity across an interface using beam matching — •Debanjan Basu and Peter Bloechl — Institute for Theoretical Physics, Clausthal University of Technology

Designing efficient thermoelectric materials requires nanostructures with low thermal conductivity. Our goal is to study thermal transmission in multilayered structures on a mode-by-mode basis. This requires us to determine the ``complex bandstructure'', which describes propagating as well as evanescent phonon modes inside each layer. We also describe how to extract the matching conditions from Newton's equations of motion for the atoms at the interface between two layers.

This work is funded by the DFG Schwerpunktprogramme 1386.