Hello Sir, I am fitting Cu2O at room temperature. I got the point. So, the negative value of SS parameter is due to the low value of SO2 guessed by artemis. I have done the fitting again by fixing the value of SO2 to 0.7. Now I am gettig positive value of SS parameter which is around 0.007. Please tell me from where I can get the standard value of SO2 calculated theoretically in the literature. with regards Abhijeet Gaur Dear Abhijit,

The parameters So2 and SS are highly correlated. The negative value of SS does not make any physical significance. It may be due that Artemis is conveging for lower value of So2. In your case (So2=0.552 or 0.61) it is very low. Generelly, it should be in the range of 0.7 to 1. It will be better if you fix So2 for the standard value calulated theoretically in the literature or you can try to get approximated value of SS for So2 around 0.8 to 0.9.

regards

Umesh Palikundwar

Department of Physics

RTM Nagpur University,

Nagpur-440033

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