Figure 4
Diffraction maps after (a) non-reactive and (b) reactive deposition, plotted as a function of the momentum transfer q and the angle χ to the surface normal. The non-reactive deposition results in a [111] textured f.c.c. La film. Yellow dots correspond to the expected peak positions. The pattern observed after reactive deposition can be explained by coexisting wurtzite and zincblende LaN in [002] and [111] orientations, respectively. The expected zincblende (yellow) and wurtzite (white) peak positions are indicated. |