Re: Stephen's anisotropic microstrain parameters in GSAS

[Hysen Thomas]

Dear Rietvelders
I am doing rietveld on some Zinc Ferrite samples. But when the U V W
parameters are refined the program crashes saying negative Guassian . Please
give your advice in this regard. Also which factors contribute to decrease
in intensity in the refined pattern.
Hysen Thomas
Lecturer
Department of Physics
Christian College
Chengannur 686 122
Kerala, India