The lattice heat capacity of binary compounds in the approximation of three-dimensional debye sublattices

Research paper by V. V. Novikov

Indexed on: 01 Sep '06Published on: 01 Sep '06Published in: Russian Journal of Physical Chemistry A


An analytic description of the temperature dependence of the heat capacity of crystals in the model of interacting three-dimensional Debye sublattices is suggested. The parameters of the model are the characteristic temperatures Θ2 and Θ3 of the sublattices and temperature Θ1 determined by the interaction between the sublattices. Satisfactory applicability of the model is substantiated for the examples of the temperature dependences of the heat capacity of gallium and indium arsenide solid solutions.