Study of the nature of epitaxial growth of red and black modifications of zinc diphosphide

The nature of epitaxial intergrowth of black (β) and red (α) modifications of zinc diphosphide is studied. The intergrowth of single crystals is shown to be caused by that the atoms-analogs form almost identical structural motifs in both structures. The black modification grows on the (001) plane of the red one so that its b axis is parallel to the (110) plane of α-ZnP2.