THank JeongEunSuk ,
 
Thank you for your suggestion, I will try to fitting it again.
 
I just recheck the XRD result. I got a only 1 sharp peak at 002 (31.311 degree) which represent a WZ structure, but you are talking about atomic disorder. Could you describe about this difference.
 

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Mr. Kittiphong Amnuyswat [kaswat]

Post Graduate student
College of KMITL Nanotechnology

Contact : kaswat@gmail.com, nakz_zz@hotmail.com [MSN Available]