Epitaxial BaF2 thin films were deposited onto InP(100) at a substrate
temperature ranging from 450 to 480-degrees-C by r.f. magnetron sputte
ring. X-ray diffraction analysis revealed a pure c-axis-oriented film
perpendicular to the substrate surface. The X-ray rocking curve of the
full width at half-maximum for BaF2(200) was less than 0.8-degrees. T
he X-ray pole figure investigation showed good in-plane alignment of t
he crystals. A scanning electron microscopy surface scan indicated a h
ighly textured film with grid growth morphology.