Phase stability analysis in Fe-Pt and Co-Pt alloy systems: An augmented space study
Durga Paudyal, Tanusri Saha-Dasgupta, Abhijit Mookerjee
Abstract
We have studied the problem of phase stability in Fe-Pt and Co-Pt alloy systems. We have used the orbital peeling technique in the conjunction of augmented space recursion based on the tight binding linear orbital method as the method for the calculation of pair interaction energies. In particular, we have generalized our earlier technique to take into account of magnetic effects for the cases where the magnetic transition is higher than the order disorder chemical transition temperature as in the case of Co3Pt. Our theoretical results obtained within this framework successfully reproduce the experimentally observed trends.
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