Abstract
Two series of magnetic multilayers consisting of two 600 /spl Aring/ permalloy (Ni/sub 83/Fe/sub 17/) layers separated by varying thicknesses of Cr, sandwiched between two further layers of Cr have been studied by spin wave resonance (SWR). One series of samples has polycrystalline layers, and for comparison a second series of epitaxial layers were grown on GaAs(100) substrates. The (100) epitaxy of the silver buffer layer with the GaAs(100), is followed by the (100) epitaxy of the Cr layer. A four domain (011) epitaxy for the permalloy is deduced from the symmetry of the Cr and permalloy layers. For the polycrystalline layers the magnetic coupling is observed to decrease monotonically to zero. The epitaxial layers show evidence of oscillatory exchange coupling; this is discussed with respect to its long period and interfacial roughness.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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.