| A theoretical model is suggested which describes dislocation structures at interphase boundaries between misoriented crystal lattices of adjacent phases in film-substrate composite solids. The energy characteristics of such interphase boundaries are calculated in the model situation with infinite boundaries. The relationships between parameters of the equilibrium dislocation structure and geometry of the interphase boundaries are derived from the minimum energy criterion. These relationships are calculated and presented in the technologically interesting situations with Si1-xGex film - Ge substrate and Cu film - Nb substrate composite systems. |
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