Tuning of a hypersonic surface phononic band gap using a nanoscale two-dimensional lattice of pillars

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorGraczykowski, B.
dc.contributor.authorMielcarek, S.
dc.contributor.authorTrzaskowska, A.
dc.contributor.authorSarkar, J.
dc.contributor.authorHakonen, Pertti J.
dc.contributor.authorMroz, B.
dc.contributor.departmentTeknillisen fysiikan laitosfi
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.schoolPerustieteiden korkeakoulufi
dc.contributor.schoolSchool of Scienceen
dc.date.accessioned2015-09-04T10:15:04Z
dc.date.available2015-09-04T10:15:04Z
dc.date.issued2012
dc.description.abstractWe present experimental and theoretical evidence of a phononic band gap in a hypersonic range for thermally activated surface acoustic waves in two-dimensional (2D) phononic crystals. Surface Brillouin light scattering experiments were performed on the (001) surface of silicon, loaded with a 2D square lattice of 100- or 150-nm-high aluminum pillars with a spacing of 500nm. The surface Brillouin light scattering spectra revealed a different type of surface mode, related to the modulation of the lattice structure and the mechanical eigenmodes of the pillars. The experimental data were in excellent agreement with theoretical calculations performed using the finite-element method.en
dc.description.versionPeer revieweden
dc.format.extent085426/1-6
dc.format.mimetypeapplication/pdfen
dc.identifier.citationGraczykowski, B. & Mielcarek, S. & Trzaskowska, A. & Sarkar, J. & Hakonen, Pertti J. & Mroz, B. 2012. Tuning of a hypersonic surface phononic band gap using a nanoscale two-dimensional lattice of pillars. Physical Review B. Volume 86, Issue 8. 085426/1-6. ISSN 1098-0121 (printed). DOI: 10.1103/physrevb.86.085426en
dc.identifier.doi10.1103/physrevb.86.085426
dc.identifier.issn1098-0121 (printed)
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/17613
dc.identifier.urnURN:NBN:fi:aalto-201509034229
dc.language.isoenen
dc.publisherAmerican Physical Society (APS)en
dc.relation.ispartofseriesPhysical Review Ben
dc.relation.ispartofseriesVolume 86, Issue 8
dc.rights© 2012 American Physical Society (APS). This is the accepted version of the following article: Graczykowski, B. & Mielcarek, S. & Trzaskowska, A. & Sarkar, J. & Hakonen, Pertti J. & Mroz, B. 2012. Tuning of a hypersonic surface phononic band gap using a nanoscale two-dimensional lattice of pillars. Physical Review B. Volume 86, Issue 8. 085426/1-6. ISSN 1098-0121 (printed). DOI: 10.1103/physrevb.86.085426, which has been published in final form at http://journals.aps.org/prb/abstract/10.1103/PhysRevB.86.085426.en
dc.rights.holderAmerican Physical Society (APS)
dc.subject.keywordphononic band gapen
dc.subject.keywordtwo-dimensional lattice of pillarsen
dc.subject.otherPhysicsen
dc.titleTuning of a hypersonic surface phononic band gap using a nanoscale two-dimensional lattice of pillarsen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.dcmitypetexten
dc.type.versionFinal published versionen

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