Radial breathing mode in silicon nanowires: An ab initio study - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2010

Radial breathing mode in silicon nanowires: An ab initio study

Résumé

We study by means of first-principles calculations the phonon spectrum of silicon nanowires oriented along the ⟨110⟩ direction with a diameter ranging from 1.0 to 2.4 nm. We analyze in particular the evolution of the radial breathing mode frequency as a mean to calibrate experimentally the diameter through Raman analysis. Remarkably, the results of elastic theory analysis are very reliable even in the limit of ultrathin wires with significant deviations from the cylindrical shape.
Fichier non déposé

Dates et versions

hal-00935127 , version 1 (23-01-2014)

Identifiants

Citer

Xavier Blase, M.V. Fernandez-Serra, E. Bourgeois. Radial breathing mode in silicon nanowires: An ab initio study. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2010, 81, pp.193410. ⟨10.1103/PhysRevB.81.193410⟩. ⟨hal-00935127⟩
31 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More