Thermal interfacial transport in the presence of ballistic heat modes
| hal.structure.identifier | Birck Nanotechnology Center | |
| dc.contributor.author | VERMEERSCH, Bjorn | |
| hal.structure.identifier | Birck Nanotechnology Center | |
| dc.contributor.author | MOHAMMED, Amr M. S. | |
| hal.structure.identifier | Laboratoire Ondes et Matière d'Aquitaine [LOMA] | |
| dc.contributor.author | PERNOT, Gilles | |
| hal.structure.identifier | Birck Nanotechnology Center | |
| dc.contributor.author | KOH, Yee Rui | |
| hal.structure.identifier | Birck Nanotechnology Center | |
| dc.contributor.author | SHAKOURI, Ali | |
| dc.date.created | 2014-02-02 | |
| dc.date.issued | 2014 | |
| dc.identifier.issn | 1098-0121 | |
| dc.description.abstractEn | Thermal interface (Kapitza) resistance expresses how hard it is for heat to flow across material junctions inside multilayer structures. This quantity plays a crucial role in the thermal performance of nanoscale devices but is still poorly understood. Here we show that conventional Fourier-based metrology overestimates metal/semiconductor resistances by up to threefold due to misinterpretation of ballistic heat flow modes. We achieve improved identification and a different physical insight with a truncated Lévy formalism. This approach properly distinguishes interfacial dynamics from nearby quasiballistic heat flow suppression in the semiconductor. Unlike conventionally extracted values, interface resistances obtained with our new approach are independent of laser modulation frequency, as physically appropriate, and much more closely approach theoretical predictions. | |
| dc.language.iso | en | |
| dc.publisher | American Physical Society | |
| dc.subject.en | Phonon-phonon interactions | |
| dc.subject.en | Thermal properties of crystalline solids | |
| dc.subject.en | Nonelectronic thermal conduction and heat-pulse propagation in solids and thermal waves | |
| dc.title.en | Thermal interfacial transport in the presence of ballistic heat modes | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1103/PhysRevB.90.014306 | |
| dc.subject.hal | Physique [physics]/Physique [physics]/Optique [physics.optics] | |
| bordeaux.journal | Physical Review B: Condensed Matter and Materials Physics (1998-2015) | |
| bordeaux.page | 014306 | |
| bordeaux.volume | 90 | |
| bordeaux.issue | 1 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-01063535 | |
| hal.version | 1 | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-01063535v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical%20Review%20B:%20Condensed%20Matter%20and%20Materials%20Physics%20(1998-2015)&rft.date=2014&rft.volume=90&rft.issue=1&rft.spage=014306&rft.epage=014306&rft.eissn=1098-0121&rft.issn=1098-0121&rft.au=VERMEERSCH,%20Bjorn&MOHAMMED,%20Amr%20M.%20S.&PERNOT,%20Gilles&KOH,%20Yee%20Rui&SHAKOURI,%20Ali&rft.genre=article |
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