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

Acoustic Phonon Lifetimes and Thermal Transport in Free-Standing and Strained Graphene

Nano Letters ◽  
2012 ◽  
Vol 12 (6) ◽  
pp. 2673-2678 ◽  
Author(s):  
Nicola Bonini ◽  
Jivtesh Garg ◽  
Nicola Marzari
Keyword(s):  
Thermal Transport ◽  
Acoustic Phonon ◽  
Free Standing ◽  
Strained Graphene

Acoustic Phonon Thermal Transport through a Nanostructure

2006 ◽  
Vol 23 (9) ◽  
pp. 2522-2525 ◽  
Author(s):  
Li Wen-Xia ◽  
Liu Tian-Yu ◽  
Liu Chang-Long
Keyword(s):  
Thermal Transport ◽  
Acoustic Phonon

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.

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
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