Debye temperature of wurtzite AlN determined by X-ray powder diffraction

摘要

The Debye temperature of wurtzite aluminum nitride (AlN) was determined by the Rietveld refinement method based on the room-temperature X-ray powder diffraction data. The refined lattice parameters are a = 3.11139(1) A, c = 4.978 43(3) A; the refined positional parameter for N is z = 0.384 59(33) A; and the refined temperature factors of Al and N were 0.442(12) A~2 and 0.559(33) A~2, respectively. Using this refined temperature factor, the Debye temperature was evaluated as 971 K through the Debye approximation.