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TU Dresden » Faculty of Mechanical Science and Engineering » Institute for Materials Science » Chair of Materials Science and Nanotechnology

» presentations   » 2017.03.21




Auxiliary-mode approach to time-dependent phonon transport

Leonardo Medrano Sandonas, Alexander Croy, Rafael Gutierrez and Gianaurelio Cuniberti

DPG Frühjahrstagung der Sektion Kondensierte Materie (SKM)

2017.03.21; Dresden, Germany

Next to electrons, phonons play a major role for the behavior of nano-scale devices. Additionally, phononics and nano-mechanics offer the possibility to steer and manipulate phonons. Hence, a more detailed understanding of phonon dynamics is required. Using an auxiliary-mode approach, which has successfully been applied for the case of electrons, we present a method to describe time-dependent phonon transport based on the time-dependent Green’s function formalism. This allows us to study local vibrations which are driven by time-dependent temperature differences between heat reservoirs.



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