Phase stability analysis in Fe-Pt and Co-Pt alloy systems: An augmented space study

Details Phase stability analysis in Fe-Pt and Co-Pt alloy systems: An augmented space study Phase stability analysis in Fe-Pt and Co-Pt alloy systems: An augmented space study

2004-07-30

arxiv.org/abs/cond-mat/0407805v2

Physics

Condensed Matter

Materials Science

17 pages, 9 Figures. Accepted for publication in Journal of Physics : Condensed Matter

Scientific paper

10.1088/0953-8984/16/41/007

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 Co$_3$Pt. Our theoretical results obtained within this framework successfully reproduce the experimentally observed trends.

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