dc.contributor.author | Péraud, Jean-Philippe M. | |
dc.contributor.author | Forghani Oozroody, Mojtaba | |
dc.contributor.author | Hadjiconstantinou, Nicolas | |
dc.date.accessioned | 2016-10-27T18:52:41Z | |
dc.date.available | 2016-10-27T18:52:41Z | |
dc.date.issued | 2016-10 | |
dc.date.submitted | 2016-07 | |
dc.identifier.issn | 2469-9950 | |
dc.identifier.issn | 2469-9969 | |
dc.identifier.uri | http://hdl.handle.net/1721.1/105113 | |
dc.description.abstract | We present a method for reconstructing the phonon relaxation time distribution τ[subscript ω]=τ(ω) (including polarization) in a material from thermal spectroscopy data. The distinguishing feature of this approach is that it does not make use of the effective thermal conductivity concept and associated approximations. The reconstruction is posed as an optimization problem in which the relaxation times τ[subscript ω]=τ(ω) are determined by minimizing the discrepancy between the experimental relaxation traces and solutions of the Boltzmann transport equation for the same problem. The latter may be analytical, in which case the procedure is very efficient, or numerical. The proposed method is illustrated using Monte Carlo solutions of thermal grating relaxation as synthetic experimental data. The reconstruction is shown to agree very well with the relaxation times used to generate the synthetic Monte Carlo data and remains robust in the presence of uncertainty (noise). | en_US |
dc.description.sponsorship | United States. Dept. of Energy. Office of Science (Solid-State Solar-Thermal Energy Conversion Center Awards DE-SC0001299 and DE-FG02-09ER46577) | en_US |
dc.publisher | American Physical Society | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1103/PhysRevB.94.155439 | en_US |
dc.rights | Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. | en_US |
dc.source | American Physical Society | en_US |
dc.title | Reconstruction of the phonon relaxation times using solutions of the Boltzmann transport equation | en_US |
dc.type | Article | en_US |
dc.identifier.citation | Forghani, Mojtaba, Nicolas G. Hadjiconstantinou, and Jean-Philippe M. Péraud. “Reconstruction of the Phonon Relaxation Times Using Solutions of the Boltzmann Transport Equation.” Physical Review B 94.15 (2016): n. pag. © 2016 American Physical Society | en_US |
dc.contributor.department | Massachusetts Institute of Technology. Department of Mechanical Engineering | en_US |
dc.contributor.mitauthor | Forghani Oozroody, Mojtaba | |
dc.contributor.mitauthor | Hadjiconstantinou, Nicolas | |
dc.relation.journal | Physical Review B | en_US |
dc.eprint.version | Final published version | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
dc.date.updated | 2016-10-24T22:00:06Z | |
dc.language.rfc3066 | en | |
dc.rights.holder | American Physical Society | |
dspace.orderedauthors | Forghani, Mojtaba; Hadjiconstantinou, Nicolas G.; Péraud, Jean-Philippe M. | en_US |
dspace.embargo.terms | N | en_US |
dc.identifier.orcid | https://orcid.org/0000-0001-8695-1891 | |
dc.identifier.orcid | https://orcid.org/0000-0002-1670-2264 | |
mit.license | PUBLISHER_POLICY | en_US |
mit.metadata.status | Complete | |