Paper Title:
Low Frequency Coherent Raman Scattering of Spherical Acoustical Vibrations of Three-Dimensional Self-Organized Germanium Nanocrystals
  Abstract

The Ge+SiO2 and SiO2 alternating multilayers are prepared by the magnetron sputtering of germanium and silica targets. By controlling the substrate temperature and by subsequent thermal annealing, the self-organized germanium quantum dots in 3D rombohedral (R 3 m) superlattice are produced. The polarized low-frequency Raman scattering measurements shows the coherent effects on the symmetric and quadrupolar spheroidal vibrations of Ge nanocrystals. It has been shown that the coherence effects are dependent on degree of Ge-ordering in the superlattice.

  Info
Periodical
Main Theme
Edited by
Pietro VINCENZINI and Giancarlo RIGHINI
Pages
127-131
DOI
10.4028/www.scientific.net/AST.55.127
Citation
M. Ivanda, M. Buljan, U.V. Desnica, K. Furić, D. Ristić, G.C. Righini, M. Ferrari, "Low Frequency Coherent Raman Scattering of Spherical Acoustical Vibrations of Three-Dimensional Self-Organized Germanium Nanocrystals", Advances in Science and Technology, Vol. 55, pp. 127-131, 2008
Online since
September 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Evgenia Valcheva, Mitra Baleva, G. Zlateva
Abstract:We study the conditions for appearance and observation of surface and interface phonon-polariton (SPP and IPP) modes in thin InN layers grown...
77
Authors: M.G. Ha, E.D. Jeong, K.S. Hong, H.S. Yang
Abstract:The temperature and particle size dependence of the holewidths for the 7F0 → 5D0 transition of Eu3+ ions in Eu2O3 are calculated and compared...
131
Authors: Bao Ji Wang, San Huang Ke
Chapter 7: Physics and Chemistry Materials and Technology
Abstract:The photoabsorption spectra of linear double Na atomic chains with different lengths and inter-chain spacings are investigated using the...
883
Authors: Cheng Chen, Xiang Ping Shu, Hua Yang Sun, Zhi Ren Qiu, Ting Wei Liang, Li Wei Tu, Zhe Chuan Feng
Chapter 13: Thin Films
Abstract:The temperature dependence Raman scattering from m-plane GaN thin films grown on m-plane sapphire substrate by Molecular Beam Epitaxy (MBE)...
1453