Non-Central-Force Model of LiH: Phonon Dispersion Curves and He Migration

1970 ◽  
Vol 1 (8) ◽  
pp. 3510-3514 ◽  
Author(s):  
W. D. Wilson ◽  
R. A. Johnson
Keyword(s):  
Phonon Dispersion ◽  
Dispersion Curves ◽  
Central Force ◽  
Force Model ◽  
Phonon Dispersion Curves

The crystal dynamics of cuprous halides

1982 ◽  
Vol 60 (11) ◽  
pp. 1589-1594 ◽  
Author(s):  
Manvir S. Kushwaha
Keyword(s):  
Phonon Dispersion ◽  
Characteristic Temperature ◽  
Force Model ◽  
Phonon Dispersion Curves ◽  
Debye Characteristic Temperature ◽  
Zinc Blende ◽  
Crystal Dynamics ◽  
Bond Bending ◽  
Dynamical Description ◽  
Good Agreement

The lattice dynamics of cuprous halides have been thoroughly investigated by means of an 8-parameter bond-bending force model (BBFM), recently developed and applied successfully to study phonons in various II–VI and III–V compound semiconductors having zinc-blende (ZB) structure. The application of BBFM is made to calculate the phonon dispersion relations, phonon density of states, and temperature variation of the Debye characteristic temperature [Formula: see text] of CuCl, CuBr, and CuI. The room-temperature neutron scattering measurements for phonon dispersion curves along three principal symmetry directions and calorimetric experimental data for the Debye characteristic temperature have been used to check the validity of BBFM for the three crystals. The overall good agreement between theoretical and experimental results supports its use as an appropriate model for the dynamical description of ZB crystals.

Phonon Dispersion Curves of aBC3Honeycomb Epitaxial Sheet

2004 ◽  
Vol 93 (17) ◽  
Author(s):  
H. Yanagisawa ◽  
T. Tanaka ◽  
Y. Ishida ◽  
M. Matsue ◽  
E. Rokuta ◽  
...  
Keyword(s):  
Phonon Dispersion ◽  
Dispersion Curves ◽  
Phonon Dispersion Curves

SiC up to 35 GPa: Eos, phonon dispersion curves and sum rule. polytypes 6H and 15R

1992 ◽  
Vol 8 (1-3) ◽  
pp. 433-435 ◽  
Author(s):  
E. V. Jakovenko ◽  
A. F. Goncharov ◽  
S. M. Stishov
Keyword(s):  
Phonon Dispersion ◽  
Dispersion Curves ◽  
Sum Rule ◽  
Phonon Dispersion Curves
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