Noncentral force model for the lattice dynamics of cubic metals

1979 ◽  
Vol 19 (4) ◽  
pp. 1963-1971 ◽  
Author(s):  
P. K. Sharma ◽  
R. K. Awasthi
Keyword(s):  
Lattice Dynamics ◽  
Force Model ◽  
Cubic Metals

scholarly journals Melting Criterion for Cubic Metals Based on a Modified Angular Force Model

1974 ◽  
Vol 27 (1) ◽  
pp. 129 ◽  
Author(s):  
Jyoti Prakash ◽  
MP Hemkar
Keyword(s):  
Melting Point ◽  
Periodic Table ◽  
Lattice Dynamics ◽  
Force Model ◽  
Mean Square ◽  
Interatomic Spacing ◽  
Cubic Metals ◽  
The Mean ◽  
Thermal Vibrations

A modified angular force model for the lattice dynamics of metals is used to test Lindemann's melting criterion by computing the ratio Ym of the mean square amplitude of thermal vibrations to the square of the interatomic spacing at the melting point for a number of cubic metals belonging to different groups in the periodic table.

Three body force model for lattice dynamics of copper

1986 ◽  
Vol 57 (8) ◽  
pp. 559-562 ◽  
Author(s):  
H. Nait-Laziz ◽  
K.K. Chopra
Keyword(s):  
Lattice Dynamics ◽  
Body Force ◽  
Force Model ◽  
Three Body

Lattice dynamics of calcium fluoride by an angular force model

Pramana ◽  
1977 ◽  
Vol 8 (5) ◽  
pp. 408-416 ◽  
Author(s):  
K K Chopra ◽  
B Dayal
Keyword(s):  
Calcium Fluoride ◽  
Lattice Dynamics ◽  
Force Model

Lattice dynamics of ZnTe, CdTe, GaP, and InP

1980 ◽  
Vol 58 (3) ◽  
pp. 351-358 ◽  
Author(s):  
M. S. Kushwaha ◽  
S. S. Kushwaha
Keyword(s):  
Lattice Dynamics ◽  
Present Model ◽  
Phonon Dispersion ◽  
Model Parameters ◽  
Force Model ◽  
Phonon Dispersion Curves ◽  
Bending Force ◽  
Zinc Blende ◽  
Bond Bending ◽  
Good Agreement

An eight-parameter bond-bending force model (BBFM), recently developed by us for zinc-blende (ZB) structure, has been used to study the lattice dynamics of other compounds of the II–VI and III–V groups. The model parameters were calculated using six critical point phonon frequencies, two elastic constants, and the lattice equilibrium condition. Phonon dispersion curves, phonon density of states, and Debye-characteristic temperatures have been calculated. The comparison of theoretical and the available experimental results reveals a fairly good agreement. The merits and demerits of the present model have been discussed in full.

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