Abstract
A significant change in the oscillatory exchange coupling corresponding to the contraction of the Fermi surface in spacer layers is found in the Co/${\mathrm{Cu}}_{1\mathrm{\ensuremath{-}}\mathit{x}}$${\mathrm{Ni}}_{\mathit{x}}$(110) system. The oscillation period becomes longer with increasing Ni concentration: from 12 \AA{} (0% Ni) to 23 \AA{} (35% Ni). This change manifests that the long-period oscillation across Cu-Ni(110) arises from the singularity at the neck orbit of the spacer Fermi surface. The neck diameters estimated from the measured periods are in good agreement with those of bulk Cu-Ni Fermi surfaces.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.