Oscillatory Exchange Coupling across Cr(1-x)Vx Alloy spacers
N. N. Lathiotakis, B. L. Gyorffy, E. Bruno, B. Ginatempo, S. S. P. Parkin
Abstract
We have identified the pieces of the Fermi surface responsible for the long period oscillations of magnetic coupling across Cr and Cr(1-x)Vx alloy spacers in metallic multilayers. Analysing experiments and results of KKR-CPA calculations we find that the periods are determined by the extremal wave~vectors of the hole pockets centered on the N-point in the Brillouin zone.
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