Lattice Parameters of Aluminium Nitride in the Range 10-291 K

W. Paszkowicza, M. Knappb, S. Podsiadłoc, G. Kamlerc and J.B. Pełkaa aInstitute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland bDarmstadt University of Technology, Institute of Materials Science Petersenstr. 23, 64287 Darmstadt, Germany cFaculty of Chemistry, Warsaw University of Technology Noakowskiego 3, 00-664 Warsaw, Poland

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Lattice parameters for aluminium nitride were determined using X-ray powder diffraction at a synchrotron radiation source (beamline B2, Hasylab/DESY, Hamburg) in the temperature range from 10 K to 291 K. The measurements were carried out using the Debye-Scherrer geometry. The relative change of both, a and c, on rising the temperature in the studied range (10-291 K) is about 0.03%. The results are compared with earlier laboratory data and theoretical predictions.

DOI: 10.12693/APhysPolA.101.781 PACS numbers: 81.05.Je, 65.40.De, 65.60.+a, 65.40.-b