Extraction of domain-specific magnetization reversal for nanofabricated periodic arrays using soft x-ray resonant magnetic scattering

摘要

A simple scheme to extract the magnetization reversals of characteristicmagnetic domains on nanofabricated periodic arrays from soft x-ray resonantmagnetic scattering (SXRMS) data is presented. The SXRMS peak intensities froma permalloy square ring array were measured with field cycling using circularlypolarized soft x-rays at the Ni L$_3$ absorption edge. Various SXRMS hysteresisloops observed at different diffraction orders enabled the determination of themagnetization reversal of each magnetic domain using a simple linear algebra.The extracted domain-specific hysteresis loops reveal that the magnetization ofthe domain parallel to the field is strongly pinned, while that of theperpendicular domain rotates continuously.