Abstract
Quantum well (QW) states and oscillatory interlayer coupling in $\mathrm{Co}∕\mathrm{Cu}∕\mathrm{Fe}∕\mathrm{Co}∕\mathrm{Cu}(001)$ are investigated by angular resolved photoemission spectroscopy and x-ray magnetic linear dichroism. We find that the QW states in $\mathrm{Cu}∕\mathrm{Fe}∕\mathrm{Co}∕\mathrm{Cu}(001)$ depend very little on the magnetic state of the fcc Fe films. The interlayer coupling between the Co films across the $\mathrm{Cu}∕\mathrm{Fe}$ spacer layer displays a checkerboard pattern in $\mathrm{Fe}\text{\ensuremath{-}}\mathrm{Cu}$ thickness plane. The presence of the fcc Fe ferromagnetic live layer at the $\mathrm{Cu}∕\mathrm{Fe}$ interface is shown to be responsible for the checkerboard pattern, which was confirmed by experiments on $\mathrm{Co}∕\mathrm{Cu}∕\mathrm{Co}∕\mathrm{Cu}∕\mathrm{Co}∕\mathrm{Cu}(100)$ system.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call