DocumentCode
602837
Title
Flexural mode dispersion in ultra-thin Ge membranes
Author
Chavez, E. ; Gomis-Bresco, J. ; Alzina, F. ; Reparaz, J.S. ; Shah, V.A. ; Myronov, M. ; Leadley, D.R. ; Sotomayor Torres, C.M.
Author_Institution
Catalan Inst. of Nanosci. & Nanotechnol, ICN2, Barcelona, Spain
fYear
2013
fDate
19-21 March 2013
Firstpage
185
Lastpage
188
Abstract
The effect of the phonon confinement on the acoustic dispersion relation is studied in 60 nm thick free-standing germanium membranes. The detection of phonon modes is observed by Brillouin Light scattering spectroscopy. The quadratic behavior of fundamental flexural wave is detected. The theoretical dispersion relation is also determinate using elastic continuum model.
Keywords
Brillouin spectra; elastic waves; elemental semiconductors; germanium; membranes; phonon dispersion relations; Brillouin light scattering spectroscopy; Ge; acoustic dispersion relation; elastic continuum model; flexural mode dispersion; flexural wave; germanium ultrathin membranes; phonon confinement; phonon modes; quadratic behavior; size 60 nm; Conductivity; Germanium; Thermal conductivity; Brillouin light scattering spectroscopy; Free-standing germanium membranes;
fLanguage
English
Publisher
ieee
Conference_Titel
Ultimate Integration on Silicon (ULIS), 2013 14th International Conference on
Conference_Location
Coventry
Print_ISBN
978-1-4673-4800-3
Electronic_ISBN
978-1-4673-4801-0
Type
conf
DOI
10.1109/ULIS.2013.6523515
Filename
6523515
Link To Document