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- Publisher Website: 10.1021/acs.nanolett.3c00680
- Scopus: eid_2-s2.0-85154035458
- PMID: 37067069
- WOS: WOS:000981747100001
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Article: Anisotropic Phonon Scattering and Thermal Transport Property Induced by the Liquid-like Behavior of AgCrSe2
Title | Anisotropic Phonon Scattering and Thermal Transport Property Induced by the Liquid-like Behavior of AgCrSe2 |
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Authors | |
Keywords | anharmonic lattice dynamics heat transfer phonons superionic conductor |
Issue Date | 17-Apr-2023 |
Publisher | American Chemical Society |
Citation | Nano Letters, 2023, v. 23, n. 8, p. 3524-3531 How to Cite? |
Abstract | Superionic conductors exhibiting a periodic crystal-line lattice and liquid-like ionic conductivity have emerged as promising materials in energy-conversion devices. Herein, we have investigated the interplay among anharmonic lattice dynamics, thermal conduction, and ultrafast atomic diffusion across the superionic transition of AgCrSe2. We show that the thermal conductivity (lc) contributions from convection and conduction??? convection interactions increase simultaneously due to the gradual fluidization of Ag atoms, leading to a temperature-independent lc in the superionic state. We demonstrate a non-Peierls type thermal transport behavior induced by the strong lattice anharmonicity of Ag atoms, which promotes a nontrivial wave-like phonon tunneling in the normal state of AgCrSe2. Our current fluctuation analysis demonstrates an anisotropic phonon-liquid scattering behavior that the in-plane nondispersive transverse acoustic (TA) phonons near the zone boundary collapse, while the zone center and boundary TA phonons in the direction perpendicular to the liquid-like flow of Ag atoms survive. |
Persistent Identifier | http://hdl.handle.net/10722/331078 |
ISSN | 2023 Impact Factor: 9.6 2023 SCImago Journal Rankings: 3.411 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Wang Chen | - |
dc.contributor.author | Chen, Yue | - |
dc.date.accessioned | 2023-09-21T06:52:34Z | - |
dc.date.available | 2023-09-21T06:52:34Z | - |
dc.date.issued | 2023-04-17 | - |
dc.identifier.citation | Nano Letters, 2023, v. 23, n. 8, p. 3524-3531 | - |
dc.identifier.issn | 1530-6984 | - |
dc.identifier.uri | http://hdl.handle.net/10722/331078 | - |
dc.description.abstract | <p>Superionic conductors exhibiting a periodic crystal-line lattice and liquid-like ionic conductivity have emerged as promising materials in energy-conversion devices. Herein, we have investigated the interplay among anharmonic lattice dynamics, thermal conduction, and ultrafast atomic diffusion across the superionic transition of AgCrSe2. We show that the thermal conductivity (lc) contributions from convection and conduction??? convection interactions increase simultaneously due to the gradual fluidization of Ag atoms, leading to a temperature-independent lc in the superionic state. We demonstrate a non-Peierls type thermal transport behavior induced by the strong lattice anharmonicity of Ag atoms, which promotes a nontrivial wave-like phonon tunneling in the normal state of AgCrSe2. Our current fluctuation analysis demonstrates an anisotropic phonon-liquid scattering behavior that the in-plane nondispersive transverse acoustic (TA) phonons near the zone boundary collapse, while the zone center and boundary TA phonons in the direction perpendicular to the liquid-like flow of Ag atoms survive.<br></p> | - |
dc.language | eng | - |
dc.publisher | American Chemical Society | - |
dc.relation.ispartof | Nano Letters | - |
dc.subject | anharmonic lattice dynamics | - |
dc.subject | heat transfer | - |
dc.subject | phonons | - |
dc.subject | superionic conductor | - |
dc.title | Anisotropic Phonon Scattering and Thermal Transport Property Induced by the Liquid-like Behavior of AgCrSe2 | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/acs.nanolett.3c00680 | - |
dc.identifier.pmid | 37067069 | - |
dc.identifier.scopus | eid_2-s2.0-85154035458 | - |
dc.identifier.volume | 23 | - |
dc.identifier.issue | 8 | - |
dc.identifier.spage | 3524 | - |
dc.identifier.epage | 3531 | - |
dc.identifier.eissn | 1530-6992 | - |
dc.identifier.isi | WOS:000981747100001 | - |
dc.publisher.place | WASHINGTON | - |
dc.identifier.issnl | 1530-6984 | - |