
TY  - JOUR
A1  - Wallace, DC 
T1  - A New Model for the Lattice Dynamics of Alkali Halides
JF  - Australian Journal of Physics
JO  - Aust. J.  Phys.
Y1  - 1973
VL  - 26
IS  - 2
SP  - 217
EP  - 224
KW  - 
UR  - https://doi.org/10.1071/PH730217 
N2  - Qualitative properties of the electronic band structure of a KCl crystal are used to derive a simple two-parameter model for the correlation function c(q, q') which arises in the theory of lattice dynamics. This function relates the adiabatic deformation of the electronic band structure to the vibration of the ion cores. Expressions for the dynamical matrices are derived. The model is ready for a direct computer evaluation of the phonon frequencies to test its validity. 
ER  -

