Journal of Physical Studies 8(2), 141–146 (2004)
DOI: https://doi.org/10.30970/jps.08.141 CACULATION OF THE INTERATOMIC FORCE CONSTANTS FOR A CUBIC LATTICE IN THE LONG-WAVELENGTH APPROXIMATIONO. V. Knihinitskyi
Department for Theoretical Physics,
Ivan Franko National University of Lviv, |
The long-wavelength method is applied to calculate interatomic force constants for a cubic lattice with the nearest and next-to-nearest neighbours taken into account. In the final expressions the interatomic potential parameters in the two-particle approach are represented via elastic modules of crystal. Using the numerical method the parameters of a power potential are obtained.
PACS number(s): 62.20.Dc, 62.30.+d, 63.10.+a