Optical vibrational states of diamond nanocrsytals

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Resumen

The phonon band structure and Raman response of diamond nanowires are calculated by means of the Born potential, including central and non-central interatomic forces, and a supercell model. The Raman scattering is studied by means of the local bond-polarization model based on the displacement- displacement Green's function within the linear response theory. Free standing, infinitely long and homogeneous quantum wires cross sections with the wire axis along the [001] direction are considered. The results show an important shift of the main Raman peak (highest optical mode) towards lower energies, in comparison with the bulk crystalline diamond case.

Idioma originalInglés
Título de la publicación alojada2009 52nd IEEE International Midwest Symposium on Circuits and Systems, MWSCAS '09
Páginas864-868
Número de páginas5
DOI
EstadoPublicada - 2009
Evento2009 52nd IEEE International Midwest Symposium on Circuits and Systems, MWSCAS '09 - Cancun, México
Duración: 2 ago. 20095 ago. 2009

Serie de la publicación

NombreMidwest Symposium on Circuits and Systems
ISSN (versión impresa)1548-3746

Conferencia

Conferencia2009 52nd IEEE International Midwest Symposium on Circuits and Systems, MWSCAS '09
País/TerritorioMéxico
CiudadCancun
Período2/08/095/08/09

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