Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/106406
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Mechanical Engineering | - |
dc.creator | Zhang, S | - |
dc.creator | Tang, X | - |
dc.creator | Ruan, H | - |
dc.creator | Zhu, L | - |
dc.date.accessioned | 2024-05-09T00:53:17Z | - |
dc.date.available | 2024-05-09T00:53:17Z | - |
dc.identifier.issn | 0947-8396 | - |
dc.identifier.uri | http://hdl.handle.net/10397/106406 | - |
dc.language.iso | en | en_US |
dc.publisher | Springer | en_US |
dc.rights | © Springer-Verlag GmbH Germany, part of Springer Nature 2019 | en_US |
dc.rights | This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use(https://www.springernature.com/gp/open-research/policies/accepted-manuscript-terms), but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: https://doi.org/10.1007/s00339-019-3033-7. | en_US |
dc.title | Effects of surface/interface stress on phonon properties and thermal conductivity in AlN/GaN/AlN heterostructural nanofilms | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.volume | 125 | - |
dc.identifier.issue | 10 | - |
dc.identifier.doi | 10.1007/s00339-019-3033-7 | - |
dcterms.abstract | The effect of surface/interface stress on phonon properties and thermal conductivity of GaN-based heterostructural nanofilms was theoretically investigated through the involvement of stress-dependent elastic modulus of nanostructures. The elastic model was used to quantitatively describe the spatially confined phonons in a GaN-based nanofilm under surface/interface stresses. The relationship between surface/interface stress and phonon thermal conductivity was further calculated for different phonon modes. Numerical results show that the positive (negative) surface/interface stress increases (decreases) the phonon energy and phonon group velocity while decreases (increases) the phonon density of state. With the increase of surface/interface stress, the phonon thermal conductivity of a nanofilm increases in SH mode but decreases in AS and SA modes. The surface/interface stress can also alter the temperature dependence of phonon thermal conductivity in heterostructural nanofilms. These simulation results will contribute to the analysis of heat transport in GaN-based heterostructural nanostructures and provide the theoretical support for the thermal performance design and optimization in GaN-based electronic devices. | - |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Applied physics. A, Materials science & processing, Oct. 2019, v. 125, no. 10, 732 | - |
dcterms.isPartOf | Applied physics. A, Materials science & processing | - |
dcterms.issued | 2019-10 | - |
dc.identifier.scopus | 2-s2.0-85073250162 | - |
dc.identifier.eissn | 1432-0630 | - |
dc.identifier.artn | 732 | - |
dc.description.validate | 202405 bcch | - |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | ME-0377 | en_US |
dc.description.fundingSource | Others | en_US |
dc.description.fundingText | National Natural Science Foundation of China; Fundamental Research Funds for the Central Universities | en_US |
dc.description.pubStatus | Published | en_US |
dc.identifier.OPUS | 20349472 | en_US |
dc.description.oaCategory | Green (AAM) | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Ruan_Effects_Surface_Stress.pdf | Pre-Published version | 1.07 MB | Adobe PDF | View/Open |
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