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HL: Fachverband Halbleiterphysik

HL 28: Focus Session: Heat transport at the nanoscale: theory meets experiment

Wednesday, March 20, 2024, 09:30–13:00, EW 203

Tailoring heat transport is fundamental in the design of semiconducting devices. Over the last decades, tremendous progress has been made in understanding the atomistic mechanisms that determine heat transport at the macro- and the nanoscale, as well as at interfaces. For the latter case, low-dimensional and non-epitaxial materials can lead to ultra-low, directional or topological phonon transport. Largely, these advances were enabled by the development of novel experimental nanoscale measurements and improved first-principles techniques covering the different transport regimes. The focus session brings together international experts that have been driving this progress to discuss their most recent advancements.

Organized by Christian Carbogno, Saskia Fischer, and Markus Wagner

09:30 HL 28.1 Invited Talk: Green-Kubo lattice dynamics approach to thermal transport in strongly anharmonic materials — •Ivana Savić
10:00 HL 28.2 Invited Talk: Hybrid crystal-glass heat conduction and radiative effects in disordered solids — •Michele Simoncelli
10:30 HL 28.3 Invited Talk: Engineering and probing phonons and thermal transport — •Ilaria Zardo, Begoña Abad, Chaitanya Arya, Giulio de Vito, Yashpreet Kaur, Dominik M. Koch, Grazia Raciti, Aswathi K. Sivan, Jose M. Sojo, and Johannes Trautvetter
  11:00 15 min. break
11:15 HL 28.4 Invited Talk: Challenges and opportunities of thermally anisotropic materials — •Sebastian Reparaz
11:45 HL 28.5 Thermal transient grating, measuring thermal anisotropies on ultra-short length scales — •Luca Sung-Min Choi, Moritz Meißner, Alwin Wüthrich, Kai Xu, Riccardo Mincigrucci, Laura Foglia, Danny Fainozzi, Filippo Bencivenga, Sebastian Reparaz, and Markus R. Wagner
12:00 HL 28.6 Ballistic phonon transport in ß-Ga2O3 — •Rüdiger Mitdank, Robin Ahrling, Andreas Popp, Jana Rehm, Arub Akhtar, Zbigniew Galazka, and Saskia Fischer
12:15 HL 28.7 anisotropic thermal conductivity studied with the ab initio Green-Kubo approach: the example of Ga2O3 — •Shuo Zhao, Thomas A. R. Purcell, Kisung Kang, Matthias Scheffler, and Christian Carbogno
12:30 HL 28.8 Computing Green-Kubo Thermal Conductivities with Semi-Local Machine-Learning Potentials — •Marcel F. Langer, Florian Knoop, J. Thorben Frank, Christian Carbogno, Matthias Scheffler, and Matthias Rupp
12:45 HL 28.9 Quantitatively accurate description of heat transport in metal-organic frameworksSandro Wieser, Florian Lindner, Lukas Legenstein, Lukas Reicht, and •Egbert Zojer
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