Anharmonic quantum thermal transport across a van der Waals interface

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Anharmonic quantum thermal transport across a van der Waals interface
Title:
Anharmonic quantum thermal transport across a van der Waals interface
Journal Title:
MRS Bulletin
Publication Date:
04 January 2023
Citation:
Zhou, H., Zhang, G., Wang, J.-S., & Zhang, Y.-W. (2023). Anharmonic quantum thermal transport across a van der Waals interface. MRS Bulletin. https://doi.org/10.1557/s43577-022-00456-6
Abstract:
We investigate the anharmonic phonon scattering across a weakly interacting interface by developing a quantum mechanics-based theory. We nd that the contribution from anharmonic threephonon scatterings to interfacial thermal conductance can be cast into Landauer formula with transmission function being temperature-dependent. Surprisingly, in the weak coupling limit, the transmission due to anharmonic phonon scattering is unbounded with increasing temperature, which is physically impossible for two-phonon processes. We further reveal that the anharmonic contribution in a real heterogeneous interface (e.g., between graphene and monolayer molybdenum disul de) can dominate over the harmonic process even at room temperature, highlighting the important role of anharmonicity in weakly interacting heterogeneous systems.
License type:
Publisher Copyright
Funding Info:
This research / project is supported by the National Research Foundation - Competitive Research Program
Grant Reference no. : NRF-CRP24- 2020-0002

This research / project is supported by the A*STAR - SERC Central Research Fund
Grant Reference no. : N.A
Description:
The version of the article has been accepted for publication, after peer review and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1557/s43577-022-00456-6
ISSN:
1938-1425
0883-7694
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