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dc.contributor.authorBeardo, Albertes_ES
dc.contributor.authorLópez Suárez, Miqueles_ES
dc.contributor.authorPérez, Luis Albertoes_ES
dc.contributor.authorSendra, Lluces_ES
dc.contributor.authorAlonso Carmona, M. Isabeles_ES
dc.contributor.authorMelis, Claudioes_ES
dc.contributor.authorBafaluy, Javieres_ES
dc.contributor.authorCamacho, Juanes_ES
dc.contributor.authorColombo, Lucianoes_ES
dc.contributor.authorRurali, Riccardoes_ES
dc.contributor.authorAlvarez, Francesc Xavieres_ES
dc.contributor.authorReparaz, J. S.es_ES
dc.date.accessioned2021-07-28T13:51:35Z-
dc.date.available2021-07-28T13:51:35Z-
dc.date.issued2021-06-30-
dc.identifier.citationScience advances 7(27): eabg4677 (2021)es_ES
dc.identifier.urihttp://hdl.handle.net/10261/246768-
dc.description.abstractSecond sound is known as the thermal transport regime where heat is carried by temperature waves. Its experimental observation was previously restricted to a small number of materials, usually in rather narrow temperature windows. We show that it is possible to overcome these limitations by driving the system with a rapidly varying temperature field. High-frequency second sound is demonstrated in bulk natural Ge between 7 K and room temperature by studying the phase lag of the thermal response under a harmonic high-frequency external thermal excitation and addressing the relaxation time and the propagation velocity of the heat waves. These results provide a route to investigate the potential of wave-like heat transport in almost any material, opening opportunities to control heat through its oscillatory nature.es_ES
dc.description.sponsorshipWe acknowledge financial support from the Spanish Ministry of Economy, Industry, and Competitiveness through the “Severo Ochoa” Program for Centers of Excellence in R&D (SEV-2015-0496 and CEX2019-000917-S), MAT2017-90024-P (TANGENTS)-EI/FEDER, 2020AEP141, grant no. RTI2018-097876-B-C22 (MCIU/AEI/FEDER, UE), and the Generalitat de Catalunya under grant nos. 2017-SGR-1506 and 2017-SGR-00488. We thank the Centro de Supercomputación de Galicia (CESGA) for the use of their computational resources. M.L.-S. was funded through the Juan de la Cierva programme.es_ES
dc.language.isoenges_ES
dc.publisherAmerican Association for the Advancement of Sciencees_ES
dc.relationMINECO/ICTI2013-2016/SEV-2015-0496es_ES
dc.relationMICIU/ICTI2017-2020/CEX2019-000917-Ses_ES
dc.relationMICIU/ICTI2017-2020/MAT2017-90024-Pes_ES
dc.relationMICIU/ICTI2017-2020/RTI2018-097876-B-C22es_ES
dc.relation.isversionofPublisher's versiones_ES
dc.rightsopenAccesses_ES
dc.subjectGermaniumes_ES
dc.subjectSemiconductorses_ES
dc.subjectScatteringes_ES
dc.titleObservation of second sound in a rapidly varying temperature field in Gees_ES
dc.typeartículoes_ES
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1126/sciadv.abg4677es_ES
dc.identifier.e-issn2375-2548-
dc.rights.licensehttps://creativecommons.org/licenses/by-nc/4.0/deed.eses_ES
dc.contributor.funderMinisterio de Economía, Industria y Competitividad (España)es_ES
dc.contributor.funderGeneralitat de Catalunyaes_ES
dc.relation.csices_ES
oprm.item.hasRevisionno ko 0 false*
dc.identifier.funderhttp://dx.doi.org/10.13039/501100010198es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100002809es_ES
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