Abstract
A shift in the hysteresis loop of a $\mathrm{NiFe}$ thin film (with in-plane anisotropy) exchange coupled to a $[\mathrm{Pt}∕\mathrm{Co}]$ multilayer (with out-of-plane anisotropy) is observed after in-plane saturation of the system. The origin of this effect and the related magnetic properties are investigated by means of in-plane and out-of-plane magnetometry techniques, magnetic force microscopy imaging, and micromagnetic simulations. Both the number of $\mathrm{Pt}∕\mathrm{Co}$ repetitions in the multilayer and the $\mathrm{NiFe}$ thickness are found to have an influence on the magnitude of the loop shift and the in-plane and out-of-plane coercivity values of the system. This is correlated with variations in the number and average size of the magnetic domains formed in the $[\mathrm{Pt}∕\mathrm{Co}]$ multilayer which, as revealed by micromagnetic simulations, pin the $\mathrm{NiFe}$ magnetization via formation of closure domains with a preferential orientation at the interface between the $[\mathrm{Pt}∕\mathrm{Co}]$ multilayer and the $\mathrm{NiFe}$.
Sign-in/Register to access full text options 
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 callDisclaimer: 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.
