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Exposing the hidden influence of selection rules on phonon–phonon scattering by pressure and temperature tuning
Selection rules act to restrict the intrinsic anharmonic interactions between phonons in all crystals. Yet their influence on phonon propagation is hidden in most materials and so, hard to interrogate experimentally. Using ab initio calculations, we show that the otherwise invisible impact of select...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8190138/ https://www.ncbi.nlm.nih.gov/pubmed/34108474 http://dx.doi.org/10.1038/s41467-021-23618-7 |
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author | Ravichandran, Navaneetha K. Broido, David |
author_facet | Ravichandran, Navaneetha K. Broido, David |
author_sort | Ravichandran, Navaneetha K. |
collection | PubMed |
description | Selection rules act to restrict the intrinsic anharmonic interactions between phonons in all crystals. Yet their influence on phonon propagation is hidden in most materials and so, hard to interrogate experimentally. Using ab initio calculations, we show that the otherwise invisible impact of selection rules on three-phonon scattering can be exposed through anomalous signatures in the pressure (P) and temperature (T) dependence of the thermal conductivities, κ, of certain compounds. Boron phosphide reveals such underlying behavior through an exceptionally sharp initial rise in κ with increasing P, which may be the steepest of any material, and also a peak and decrease in κ at high P. These features are in stark contrast to the measured behavior for many solids, and they occur at experimentally accessible conditions. These findings give a deep understanding of phonon lifetimes and heat conduction in solids, and motivate experimental efforts to observe the predicted behavior. |
format | Online Article Text |
id | pubmed-8190138 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-81901382021-07-01 Exposing the hidden influence of selection rules on phonon–phonon scattering by pressure and temperature tuning Ravichandran, Navaneetha K. Broido, David Nat Commun Article Selection rules act to restrict the intrinsic anharmonic interactions between phonons in all crystals. Yet their influence on phonon propagation is hidden in most materials and so, hard to interrogate experimentally. Using ab initio calculations, we show that the otherwise invisible impact of selection rules on three-phonon scattering can be exposed through anomalous signatures in the pressure (P) and temperature (T) dependence of the thermal conductivities, κ, of certain compounds. Boron phosphide reveals such underlying behavior through an exceptionally sharp initial rise in κ with increasing P, which may be the steepest of any material, and also a peak and decrease in κ at high P. These features are in stark contrast to the measured behavior for many solids, and they occur at experimentally accessible conditions. These findings give a deep understanding of phonon lifetimes and heat conduction in solids, and motivate experimental efforts to observe the predicted behavior. Nature Publishing Group UK 2021-06-09 /pmc/articles/PMC8190138/ /pubmed/34108474 http://dx.doi.org/10.1038/s41467-021-23618-7 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Ravichandran, Navaneetha K. Broido, David Exposing the hidden influence of selection rules on phonon–phonon scattering by pressure and temperature tuning |
title | Exposing the hidden influence of selection rules on phonon–phonon scattering by pressure and temperature tuning |
title_full | Exposing the hidden influence of selection rules on phonon–phonon scattering by pressure and temperature tuning |
title_fullStr | Exposing the hidden influence of selection rules on phonon–phonon scattering by pressure and temperature tuning |
title_full_unstemmed | Exposing the hidden influence of selection rules on phonon–phonon scattering by pressure and temperature tuning |
title_short | Exposing the hidden influence of selection rules on phonon–phonon scattering by pressure and temperature tuning |
title_sort | exposing the hidden influence of selection rules on phonon–phonon scattering by pressure and temperature tuning |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8190138/ https://www.ncbi.nlm.nih.gov/pubmed/34108474 http://dx.doi.org/10.1038/s41467-021-23618-7 |
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