On an Unusual Azimuthal Orientational Relationship in the System Gallium Nitride Layer on Spinel Substrate.

Possible types of orientational relationships for hexagonal and cubic gallium nitride layers on aluminum-magnesium spinel substrates with various crystallographic orientations have been determined as a result of the theoretical and the experimental studies of this system. Most of the experimental data and the data obtained in the present study are consistent with the theoretical considerations. The causes of some apparent inconsistencies are discussed. [ABSTRACT FROM AUTHOR]