The acoustic phonon spectrum of penrose tilings

1986 ◽  
Vol 65 (1) ◽  
pp. 1-6 ◽  
Author(s):  
M. Klenin
Keyword(s):  
Phonon Spectrum ◽  
Acoustic Phonon ◽  
Penrose Tilings

THE INFLUENCE OF ENVIRONMENTAL EFFECTS ON THE ACOUSTIC PHONON SPECTRA IN QUANTUM-DOT HETEROSTRUCTURES

2002 ◽  
Vol 12 (04) ◽  
pp. 1147-1158 ◽  
Author(s):  
SALVADOR RUFO ◽  
MITRA DUTTA ◽  
MICHAEL A. STROSCIO
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Environmental Effects ◽  
Phonon Spectrum ◽  
Acoustic Phonon ◽  
Matrix Material ◽  
Free Standing ◽  
Phonon Spectra ◽  
The Matrix ◽  
Selection Of

We present calculations of the acoustic phonon spectra for a variety of quantum dots and consider the cases where the quantum dots are both free-standing and embedded in a selection of different matrix materials — including semiconductors, plastic, and water. These results go beyond previous calculations for free-standing quantum dots and demonstrate that the matrix material can have a large effect on the acoustic phonon spectrum and consequently on a variety of phonon-assisted transitions in quantum-dot heterostructures.

scholarly journals Acoustic-phonon spectrum rearrangement in a one-dimensional system with mass disorder

2004 ◽  
Vol 70 (22) ◽  
Author(s):  
Yu. V. Skrypnyk ◽  
B. I. Min ◽  
V. S. Molodid
Keyword(s):  
Phonon Spectrum ◽  
Acoustic Phonon ◽  
Dimensional System ◽  
One Dimensional

scholarly journals Acoustic phonon spectrum and thermal transport in nanoporous alumina arrays

2015 ◽  
Vol 107 (17) ◽  
pp. 171904 ◽  
Author(s):  
Fariborz Kargar ◽  
Sylvester Ramirez ◽  
Bishwajit Debnath ◽  
Hoda Malekpour ◽  
Roger K. Lake ◽  
...  
Keyword(s):  
Phonon Spectrum ◽  
Thermal Transport ◽  
Acoustic Phonon ◽  
Nanoporous Alumina

Modeling of Phonon Dispersion in a Semiconductor Quantum Dot Crystal

2002 ◽  
Vol 731 ◽  
Author(s):  
Olga L. Lazarenkova ◽  
Alexander A. Balandin
Keyword(s):  
Quantum Dot ◽  
Phonon Spectrum ◽  
Acoustic Phonon ◽  
Phonon Dispersion ◽  
Three Dimensional ◽  
Semiconductor Quantum Dots ◽  
Low Energy ◽  
Band Formation ◽  
Carrier Relaxation ◽  
Semiconductor Quantum Dot

AbstractWe describe a model for numerical calculation of phonon spectrum in a three-dimensional regimented array of semiconductor quantum dots. Regimentation and possibility of carrier mini-band formation make this structure analogous to a crystal, e.g.quantum dot crystal. It is demonstrated that the acoustic phonon dispersion undergoes strong modification in such a structure leading to emergence of low-energy quasi-optical branches. Strong phonon spectrum modification is expected to affect carrier relaxation and transport properties.

Phase instability and electron-assisted renormalization of acoustic phonon spectrum in free-standing quantum wires

1999 ◽  
Vol 263-264 ◽  
pp. 522-525
Author(s):  
S.M. Komirenko ◽  
K.W. Kim ◽  
V.A. Kochelap ◽  
Mitra Dutta ◽  
Michael A. Stroscio
Keyword(s):  
Phonon Spectrum ◽  
Acoustic Phonon ◽  
Quantum Wires ◽  
Free Standing ◽  
Phase Instability

Electron-Phonon Interactions and Vibrational Modes in Insulating Nanocrystals

2010 ◽  
Vol 11 ◽  
pp. 131-137
Author(s):  
M.G. Ha ◽  
E.D. Jeong ◽  
K.S. Hong ◽  
H.S. Yang
Keyword(s):  
Particle Size ◽  
Phonon Spectrum ◽  
Acoustic Phonon ◽  
Size Dependence ◽  
Electronic States ◽  
Vibrational Modes ◽  
Phonon Interaction ◽  
Electron Phonon Interaction ◽  
Isotropic Sphere

The temperature and particle size dependence of the holewidths for the 7F0 → 5D0 transition of Eu3+ ions in Eu2O3 are calculated and compared with experiment. The calculation is able to describe the effect of nanocrystal vibrational modes on the dephasing of the electronic states of probe ions. The nanocrystal was treated as an elastically isotropic sphere from which the acoustic phonon displacements and phonon spectrum were calculated. Then we applied this to the temperature and size dependencies of the electron-phonon interaction. Also the vibrational modes in nanocrystals are discussed.

scholarly journals Acoustic phonon spectrum engineering in bulk crystals via incorporation of dopant atoms

2018 ◽  
Vol 112 (19) ◽  
pp. 191902 ◽  
Author(s):  
Fariborz Kargar ◽  
Elias H. Penilla ◽  
Ece Aytan ◽  
Jacob S. Lewis ◽  
Javier E. Garay ◽  
...  
Keyword(s):  
Phonon Spectrum ◽  
Acoustic Phonon ◽  
Bulk Crystals ◽  
Dopant Atoms
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