Cubic-phase AlN thin films were fabricated on sapphire(0001) substrates by pulsed laser deposition at an extremely high-pressure ambient nitrogen. The crystallographic properties of the films were evaluated using X-ray diffraction techniques. The θ-2θ measurements showed diffraction peaks originating from different c-AlN structure between the films grown in the nitrogen atmosphere at 30 Torr and 80 Torr, which implied that the structural phase of c-AlN films was sensitive to the pressure of the ambient nitrogen. We investigated the details of the AlN 11̄1 diffraction spots from the films at 80 Torr and revealed that the films were epitaxially grown on the substrates with the relationship ofc-AlN(111)[12̄1]//Al2O 3(0001)[112̄0].
|Journal||IOP Conference Series: Materials Science and Engineering|
|Publication status||Published - Nov 22 2011|
|Event||2010 Summer Workshop on Buried Interface Science with X-Rays and Neutrons - Nagoya, Japan|
Duration: Jul 25 2010 → Jul 27 2010
All Science Journal Classification (ASJC) codes
- Materials Science(all)