DOI: https://doi.org/10.30970/jps.01.151
THE VIBRATIONAL SPECTRA OF UNITS OF AMORPHOUS SiO2
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Journal of Physical Studies 1(2), 151–155 (1997)
DOI: https://doi.org/10.30970/jps.01.151 THE VIBRATIONAL SPECTRA OF UNITS OF AMORPHOUS SiO2 |
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O. M. Popel, O. V. Knihinitskyi
Ivan Franko Lviv State University, Chair of Theoretical Physics
12Drahomanov Str., UA-290005, Lviv, Ukraine
The dynamic properties of an isolated structure element of SiO$_2$ in the form of tetrahedra SiO$_4$ cluster are considered. Using the groups theory method the eigenvalues and eigenvectors of the dynamical matrix are calculated. The simple condition for the obtaining of the two-body interatomic potential parameters in the case or tetrahedral symmetry cluster is derived.