Anyone know about the Rietveld refinement using GSAS software means, can you please tell me how you can get the cif (Crystallographic information file) and give me the website link. I need cif file for Ni and Ni3P.
Ideally, you know or at least have an idea of the crystal symmetry of their material (for Ni and Ni3P), before searching for a CIF. The ICSD is a major crystallographic bases in the world, the problem is that it is paid. It has a free site is http://www.crystallography.net/index.php
If you need some other CIF not find on this site, I have access to ICSD's website and can help you.