Polar optical phonons in wurtzite spheroidal quantum dots: Theory and application to ZnO and ZnO/MgZnO nanostructures

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dc.creatorFonoberov, Vladimir A.
dc.creatorBalandin, Alexander A.
dc.date2004-11-30
dc.date.accessioned2026-07-07T03:02:25Z
dc.date.available2026-07-07T03:02:25Z
dc.descriptionPolar optical-phonon modes are derived analytically for spheroidal quantum dots with wurtzite crystal structure. The developed theory is applied to a freestanding spheroidal ZnO quantum dot and to a spheroidal ZnO quantum dot embedded into a MgZnO crystal. The wurtzite (anisotropic) quantum dots are shown to have strongly different polar optical-phonon modes in comparison with zincblende (isotropic) quantum dots. The obtained results allow one to explain and accurately predict phonon peaks in the Raman spectra of wurtzite nanocrystals, nanorods (prolate spheroids), and epitaxial quantum dots (oblate spheroids).
dc.description11 pages
dc.identifierhttps://arxiv.org/abs/cond-mat/0411742
dc.identifierhttp://arxiv.org/abs/cond-mat/0411742
dc.identifierJ. Phys.: Condens. Matter 17, 1085 (2005)
dc.identifierdoi:10.1088/0953-8984/17/7/003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/25385
dc.subjectMesoscale and Nanoscale Physics
dc.titlePolar optical phonons in wurtzite spheroidal quantum dots: Theory and application to ZnO and ZnO/MgZnO nanostructures
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