Features of electronic and lattice mechanisms of transboundary heat transfer in multilayer nanolaminate TiA1N/Ag coatings

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dc.contributor.authorKovalev, Anatoly I.
dc.contributor.authorWainstein, D. L.
dc.contributor.authorVakhrushev, V. O.
dc.contributor.authorGago, R.
dc.contributor.authorSoldera, F.
dc.contributor.authorEndrino, José L.
dc.contributor.authorFox-Rabinovich, German S.
dc.contributor.authorVeldhuis, Stephen C.
dc.date.accessioned2018-01-15T11:21:08Z
dc.date.available2018-01-15T11:21:08Z
dc.date.issued2017-12-06
dc.description.abstractPlasmon resonance heterogeneities were identified and studied along Ag and TiAlN layers within a multilayer stack in nanolaminate TiAlN/Ag coatings. For this purpose, a high-resolution plasmon microscopy was used. The plasmons intensity, energy, and depth of interface plasmon-polariton penetration were studied by scanning reflected electron energy loss spectroscopy. The heat conductivity of such metal-insulator-metal (MIM) nanolaminate coatings was measured by laser reflectometry. Dependencies of thermal conductivity coefficient of coatings, MIM interfaces, and resistivity of Ag layers as a function of the Ag-TiAlN bilayer thickness were calculated on the basis of experimental data. The contribution of plasmon resonance confinement to the abnormal lower thermal conductivity in the MIM metamaterial with Ag layer thickness below 25 nm is discussed. In particular, the results highlight the relevant role of different heat transfer mechanisms between MI and IM interfaces: asymmetry of plasmon-polariton interactions on upper and lower boundaries of Ag layer and asymmetry of LA and TA phonons propagation through interfaces.en_UK
dc.identifier.citationKovalev AI, Wainstein DL, Vakhrushev VO, Gago R, Soldera F, Endrino JL, Fox-Rabinovich GS, Veldhuis S, (2017) Features of electronic and lattice mechanisms of transboundary heat transfer in multilayer nanolaminate TiAlN/Ag coatings, Scientific Reports, Vol. 7, 2017, Article number 17078en_UK
dc.identifier.issn2045-2322
dc.identifier.urihttp://dx.doi.org/10.1038/s41598-017-17291-4
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/12891
dc.language.isoenen_UK
dc.publisherNature Publishing Groupen_UK
dc.rightsAttribution 4.0 International*
dc.rightsAttribution 4.0 International (CC BY 4.0) You are free to: Share — copy and redistribute the material in any medium or format Adapt — remix, transform, and build upon the material for any purpose, even commercially. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Information: No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titleFeatures of electronic and lattice mechanisms of transboundary heat transfer in multilayer nanolaminate TiA1N/Ag coatingsen_UK
dc.typeArticleen_UK

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