Coherent phonon scattering in ZnO and ZnS at sulfite and oxygen impurities

2012 ◽  
Vol 210 (1) ◽  
pp. 125-130 ◽  
Author(s):  
M. Bachmann ◽  
M. Czerner ◽  
C. Heiliger
Keyword(s):  
Phonon Scattering ◽  
Coherent Phonon ◽  
Oxygen Impurities

High Thermoelectric Performance of ZnO by Coherent Phonon Scattering and Optimized Charge Transport

2021 ◽  
pp. 2105008
Author(s):  
Somnath Acharya ◽  
Byung‐Kyu Yu ◽  
Junphil Hwang ◽  
Jiyong Kim ◽  
Woochul Kim
Keyword(s):  
Charge Transport ◽  
Phonon Scattering ◽  
Thermoelectric Performance ◽  
Coherent Phonon

DYNAMICAL PROPERTIES OF AN ATOMIC INTERFACE BETWEEN bcc LATTICES

2014 ◽  
Vol 28 (10) ◽  
pp. 1450072
Author(s):  
GHANIA BELKACEMI ◽  
BOUALEM BOURAHLA ◽  
ANTOINE KHATER
Keyword(s):  
Phonon Scattering ◽  
Model System ◽  
Localized States ◽  
Interface Properties ◽  
Transmission Spectra ◽  
Coherent Phonon ◽  
Matching Method ◽  
Interface Zone ◽  
Coherent Coupling ◽  
Elastic Softening

A study of the phonon contribution to the interface properties between two bcc dissimilar solids is presented. The model system is obtained by the juxtaposition of two semi-infinite harmonic bcc lattices. The interface observables are numerically calculated for different cases of masses and elastic softening to hardening, to investigate how the local dynamics can respond to many environmental microscopic changes in the field interfacial domain. The theoretical formalism using simultaneously the Green's functions and the matching method is employed to describe the dynamics of the bcc system, the complete evanescent and the propagating fields. A calculation is presented for the vibration localized states, the coherent phonon transmission and the density of states (DOS), as element of a Landauer–Büttiker type scattering matrix. The system dynamics, the phonon scattering and the transmission spectra via the interface domain between bcc lattices and the DOS are analyzed as function of the atomic masses and the elastic force constants occurring in the nanojunction zone of the model system. Our results show that the interface zone is an effective phonon splitter and suggest that its characteristics may be controlled by varying its nanometric parameters. The observed fluctuations are due to the coherent coupling between continuum and discrete states induced by the interface domain.

Coherent phonon scattering and the neutron Kikuchi effect

1985 ◽  
Vol 31 (11) ◽  
pp. 7466-7468 ◽  
Author(s):  
D. Petrascheck
Keyword(s):  
Phonon Scattering ◽  
Coherent Phonon

scholarly journals Thermal transport in phononic crystals and the observation of coherent phonon scattering at room temperature

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Seyedhamidreza Alaie ◽  
Drew F. Goettler ◽  
Mehmet Su ◽  
Zayd C. Leseman ◽  
Charles M. Reinke ◽  
...  
Keyword(s):  
Thermal Transport ◽  
Room Temperature ◽  
Phonon Scattering ◽  
Phononic Crystals ◽  
Coherent Phonon

Crossover from incoherent to coherent phonon scattering in epitaxial oxide superlattices

2013 ◽  
Vol 13 (2) ◽  
pp. 168-172 ◽  
Author(s):  
Jayakanth Ravichandran ◽  
Ajay K. Yadav ◽  
Ramez Cheaito ◽  
Pim B. Rossen ◽  
Arsen Soukiassian ◽  
...  
Keyword(s):  
Phonon Scattering ◽  
Coherent Phonon ◽  
Epitaxial Oxide

Coherent Phonon Scattering in Molecular Devices

2003 ◽  
Vol 2 (2-4) ◽  
pp. 251-256 ◽  
Author(s):  
A. Pecchia ◽  
M. Gheorghe ◽  
L. Latessa ◽  
A. Di Carlo
Keyword(s):  
Phonon Scattering ◽  
Molecular Devices ◽  
Coherent Phonon
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