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

Published online by Cambridge University Press:  14 July 2014

J. Wang ,
M. Zhao ,
S. F. Jin ,
D. D. Li ,
J. W. Yang ,
W. J. Hu  and
W. J. Wang
J. Wang
Affiliation:
Research and Development Center of Functional Crystal Beijing, National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100190, China
M. Zhao
Affiliation:
Research and Development Center of Functional Crystal Beijing, National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100190, China
S. F. Jin
Affiliation:
Research and Development Center of Functional Crystal Beijing, National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100190, China
D. D. Li
Affiliation:
Research and Development Center of Functional Crystal Beijing, National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100190, China
J. W. Yang
Affiliation:
Research and Development Center of Functional Crystal Beijing, National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100190, China
W. J. Hu
Affiliation:
Research and Development Center of Functional Crystal Beijing, National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100190, China
W. J. Wang*
Affiliation:
Research and Development Center of Functional Crystal Beijing, National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100190, China
*
a)Author to whom correspondence should be addressed. Electronic mail: [email protected]
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Abstract

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) Å, c = 4.978 43(3) Å; the refined positional parameter for N is z = 0.384 59(33) Å; and the refined temperature factors of Al and N were 0.442(12) Å2 and 0.559(33) Å2, respectively. Using this refined temperature factor, the Debye temperature was evaluated as 971 K through the Debye approximation.

Keywords

AlNDebye temperaturepowder diffractionX-ray
Type
Technical Articles
Information
Powder Diffraction , Volume 29 , Issue 4 , December 2014 , pp. 352 - 355
Copyright
Copyright © International Centre for Diffraction Data 2014 

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