Abstract
The magnetisation reversal processes in ferromagnetically coupled multilayer films of (Co/NiFe/Co)/Cu were investigated using Fresnel imaging. The films possess an in-plane uniaxial anisotropy and both easy and hard axis magnetisation reversal were typical of ferromagnetically coupled multilayer films. On application of a hard axis field, a splitting of the domain walls into two was observed. No wall transitions occurred but the split wall separation increased with the applied field. The formation of 360° wall loops from small domains was observed on application of a hard axis field and magnetic fields up to 20 H k were required to annihilate them. The magnetisation reversal on application of a field at an angle of 25° to the hard axis is highly complex and a detailed analysis of the reversal processes has been carried out using power spectra of Fresnel images taken during magnetisation reversal.
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.
