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I have refined a structure at different temperatures (10-300K). The lattice constant increases with increasing temperature. At low temperature (below 50K) the variation is not linear. In some papers , I have read that a simple Debye model is sufficient to fit this behavior. Is is correst? In this case, could you please send me the exact function to permform the fit.

Thanks in advance.
Sincerely,


Laurent CHAPON
LPMC, UMR 5617 CNRS, CC003
Université Montpellier II
5, place E. Bataillon
34095 Montpellier Cedex
FRANCE
Mail to : [EMAIL PROTECTED]
Phone :+33-4-67-14-48-88 (ask for Mr CHAPON)
Fax: +33-4-67-14-42-90