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Campo DC | Valor | Lengua/Idioma |
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dc.contributor.author | Torres, Pol | es_ES |
dc.contributor.author | Royo Valls, Miquel | es_ES |
dc.contributor.author | López Suárez, Miquel | es_ES |
dc.contributor.author | Shiomi, Junichiro | es_ES |
dc.contributor.author | Rurali, Riccardo | es_ES |
dc.date.accessioned | 2021-03-07T13:22:26Z | - |
dc.date.available | 2021-03-07T13:22:26Z | - |
dc.date.issued | 2020-10-26 | - |
dc.identifier.citation | Physical Review - Section B - Condensed Matter 102(14): 144305 (2020) | es_ES |
dc.identifier.issn | 2469-9950 | - |
dc.identifier.uri | http://hdl.handle.net/10261/233199 | - |
dc.description.abstract | At short length scales phonon transport is ballistic: the thermal resistance of semiconductors and insulators is quantized and length independent. At long length scales, on the other hand, transport is diffusive and resistance arises as a result of the scattering processes experienced by phonons. In many cases of interest, however, these two transport regimes coexist. Here we propose a first-principles approach to treat quasiballistic phonon transport where diffusive and ballistic phonons receive separate theoretical treatments. Partitioning the overall phonon population for a given transport length is performed examining the mean free paths obtained from the solution of the Boltzmann transport equation and allowing only diffusive phonons to participate in anharmonic phonon-phonon scattering processes. We present results for Si and diamond, discussing the crossover from ballistic to diffusive transport as the length scale and/or the temperature increases and compute the relative contribution of ballistic and diffusive phonons to the thermal conductance in each transport condition. | es_ES |
dc.description.sponsorship | We acknowledge financial support by the Ministerio de Economía, Industria y Competitividad (MINECO) under Grant No. FEDER-MAT2017-90024-P and the Severo Ochoa Centres of Excellence Program under Grant No. SEV-2015-0496 and by the Generalitat de Catalunya under Grant No. 2017 SGR 1506. M.L.-S. was funded through a Juan de la Cierva fellowship. We thank the Centro de Supercomputación de Galicia (CESGA) for the use of their computational resources. P.T. acknowledges funding by the Canon Foundation in Europe. The authors thank M. Brandbyge and L. Colombo for critical reading of the paper and J. Carrete for useful discussions about technical details related with the implementation of shengbte. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | American Physical Society | es_ES |
dc.relation | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/MAT2017-90024-P | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/SEV-2015-0496 | es_ES |
dc.relation.isversionof | Publisher's version | es_ES |
dc.rights | openAccess | es_ES |
dc.subject | Thermal-conductivity | es_ES |
dc.title | Quasiballistic phonon transport from first principles | es_ES |
dc.type | artículo | es_ES |
dc.description.peerreviewed | Peer reviewed | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.1103/PhysRevB.102.144305 | es_ES |
dc.contributor.funder | Ministerio de Economía, Industria y Competitividad (España) | es_ES |
dc.contributor.funder | Generalitat de Catalunya | es_ES |
dc.contributor.funder | Canon Foundation in Europe | es_ES |
dc.relation.csic | Sí | es_ES |
oprm.item.hasRevision | no ko 0 false | * |
dc.identifier.funder | http://dx.doi.org/10.13039/501100002809 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/100005286 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100010198 | es_ES |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | artículo | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
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Torres_PhysRevB_2020_editorial.pdf | 761,62 kB | Adobe PDF | Visualizar/Abrir |
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