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Article: Film/substrate interface stability in thin films
Title | Film/substrate interface stability in thin films |
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Authors | |
Issue Date | 2006 |
Citation | Journal of Applied Physics, 2006, v. 99, n. 4, article no. 043504 How to Cite? |
Abstract | We examined the morphological stability of an interface between a misfitting thin film and a substrate within the framework of linear stability theory. An interface instability exists regardless of the mismatch between the elastic properties of the film and the substrate and the magnitude of the interface energy. Stiffer substrates, smaller misfits, and larger interface energies all tend to reduce the range of wave numbers (to smaller values) over which the instability exists. We demonstrate that the film itself is unstable in all circumstances, even under conditions where the free surface remains flat. In other words, a misfitting film on a substrate is always unstable. We also demonstrate that the interface instability is enhanced when the interface can slip than when it cannot. © 2006 American Institute of Physics. |
Persistent Identifier | http://hdl.handle.net/10722/303272 |
ISSN | 2023 Impact Factor: 2.7 2023 SCImago Journal Rankings: 0.649 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Krishnamurthy, R. | - |
dc.contributor.author | Srolovitz, D. J. | - |
dc.date.accessioned | 2021-09-15T08:24:58Z | - |
dc.date.available | 2021-09-15T08:24:58Z | - |
dc.date.issued | 2006 | - |
dc.identifier.citation | Journal of Applied Physics, 2006, v. 99, n. 4, article no. 043504 | - |
dc.identifier.issn | 0021-8979 | - |
dc.identifier.uri | http://hdl.handle.net/10722/303272 | - |
dc.description.abstract | We examined the morphological stability of an interface between a misfitting thin film and a substrate within the framework of linear stability theory. An interface instability exists regardless of the mismatch between the elastic properties of the film and the substrate and the magnitude of the interface energy. Stiffer substrates, smaller misfits, and larger interface energies all tend to reduce the range of wave numbers (to smaller values) over which the instability exists. We demonstrate that the film itself is unstable in all circumstances, even under conditions where the free surface remains flat. In other words, a misfitting film on a substrate is always unstable. We also demonstrate that the interface instability is enhanced when the interface can slip than when it cannot. © 2006 American Institute of Physics. | - |
dc.language | eng | - |
dc.relation.ispartof | Journal of Applied Physics | - |
dc.title | Film/substrate interface stability in thin films | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1063/1.2173047 | - |
dc.identifier.scopus | eid_2-s2.0-33644589697 | - |
dc.identifier.volume | 99 | - |
dc.identifier.issue | 4 | - |
dc.identifier.spage | article no. 043504 | - |
dc.identifier.epage | article no. 043504 | - |
dc.identifier.isi | WOS:000235663100010 | - |