Dear Rietvelders,
I would appreciate your help in the following problem,
Even with a stoichiometric mixture of starting materials, NdBa2Cu3Oy is
known to form a solid solution of the type Nd1+xBa2-xCu3Oy(Non
stoichiometric). So a small amount of BaCO3 and CuO are expected to be the
impurities.
I have taken two models
1.NdBa2Cu3O7 (Stoichiometric)
2.Nd(Ba1-xNdx)2Cu3O7 (Non-stoichiometric)
I have considered the following cases with XND.
Stoichiometric? Impurites included?
1. Yes No
2. No No
3. Yes Yes
4. No Yes
I have obtained different R factors. Now I want to decide which is the
most correct model. I have been suggested to use Hamilton R-factor
ratio test.
Could anybody give me the details of Hamilton R-factor ratio test?
Thanks
-Nagesh Kini
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