Extended anharmonic collapse of phonon dispersions in SnS and SnSe

Extended anharmonic collapse of phonon dispersions in SnS and SnSe

Thermoelectric efficiency of SnS and SnSe is reported to peak around the phase transition temperature around 800 K; however, the transition mechanism and origin of ultralow thermal conductivity remain unclear. Here, the authors reveal the soft-mode mechanism of the phase transition that impacts ther...

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Main Authors: T. Lanigan-Atkins, S. Yang, J. L. Niedziela, D. Bansal, A. F. May, A. A. Puretzky, J. Y. Y. Lin, D. M. Pajerowski, T. Hong, S. Chi, G. Ehlers, O. Delaire
Format: Article
Language:English
Published: Nature Publishing Group 2020-09-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-020-18121-4
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spelling doaj-fe0cfe68793b461196484c45edd965802021-09-05T11:45:31ZengNature Publishing GroupNature Communications2041-17232020-09-011111910.1038/s41467-020-18121-4Extended anharmonic collapse of phonon dispersions in SnS and SnSeT. Lanigan-Atkins0S. Yang1J. L. Niedziela2D. Bansal3A. F. May4A. A. Puretzky5J. Y. Y. Lin6D. M. Pajerowski7T. Hong8S. Chi9G. Ehlers10O. Delaire11Department of Mechanical Engineering and Materials Science, Duke UniversityDepartment of Mechanical Engineering and Materials Science, Duke UniversityMaterials Science and Technology Division, Oak Ridge National LaboratoryDepartment of Mechanical Engineering and Materials Science, Duke UniversityMaterials Science and Technology Division, Oak Ridge National LaboratoryCenter for Nanophase Materials Sciences, Oak Ridge National LaboratoryNeutron Scattering Division, Oak Ridge National LaboratoryNeutron Scattering Division, Oak Ridge National LaboratoryNeutron Scattering Division, Oak Ridge National LaboratoryNeutron Scattering Division, Oak Ridge National LaboratoryNeutron Scattering Division, Oak Ridge National LaboratoryDepartment of Mechanical Engineering and Materials Science, Duke UniversityThermoelectric efficiency of SnS and SnSe is reported to peak around the phase transition temperature around 800 K; however, the transition mechanism and origin of ultralow thermal conductivity remain unclear. Here, the authors reveal the soft-mode mechanism of the phase transition that impacts thermal transport and thermoelectric efficiency.https://doi.org/10.1038/s41467-020-18121-4
collection DOAJ
language English
format Article
sources DOAJ
author T. Lanigan-Atkins
S. Yang
J. L. Niedziela
D. Bansal
A. F. May
A. A. Puretzky
J. Y. Y. Lin
D. M. Pajerowski
T. Hong
S. Chi
G. Ehlers
O. Delaire
spellingShingle T. Lanigan-Atkins
S. Yang
J. L. Niedziela
D. Bansal
A. F. May
A. A. Puretzky
J. Y. Y. Lin
D. M. Pajerowski
T. Hong
S. Chi
G. Ehlers
O. Delaire
Extended anharmonic collapse of phonon dispersions in SnS and SnSe
Nature Communications
author_facet T. Lanigan-Atkins
S. Yang
J. L. Niedziela
D. Bansal
A. F. May
A. A. Puretzky
J. Y. Y. Lin
D. M. Pajerowski
T. Hong
S. Chi
G. Ehlers
O. Delaire
author_sort T. Lanigan-Atkins
title Extended anharmonic collapse of phonon dispersions in SnS and SnSe
title_short Extended anharmonic collapse of phonon dispersions in SnS and SnSe
title_full Extended anharmonic collapse of phonon dispersions in SnS and SnSe
title_fullStr Extended anharmonic collapse of phonon dispersions in SnS and SnSe
title_full_unstemmed Extended anharmonic collapse of phonon dispersions in SnS and SnSe
title_sort extended anharmonic collapse of phonon dispersions in sns and snse
publisher Nature Publishing Group
series Nature Communications
issn 2041-1723
publishDate 2020-09-01
description Thermoelectric efficiency of SnS and SnSe is reported to peak around the phase transition temperature around 800 K; however, the transition mechanism and origin of ultralow thermal conductivity remain unclear. Here, the authors reveal the soft-mode mechanism of the phase transition that impacts thermal transport and thermoelectric efficiency.
url https://doi.org/10.1038/s41467-020-18121-4
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AT syang extendedanharmoniccollapseofphonondispersionsinsnsandsnse
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