Abstract
Sputter-etching an appropriate polymer substrate produces a densely-packed array of needlelike projections on the polymer surface. Rf sputter deposition of Fe <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">80</inf> B <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">20</inf> onto this surface produces an array of elongated finger-like projections of amorphous magnetic material, with diameters well under 1 μm and aspect ratios of 5 or more. These finger-like projections meet the definition of ultra-fine particles(UFP). Planar samples prepared in this way have a magnetic easy axis perpendicular to the sample surface with K <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">u</inf> /2πM <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">s</inf> <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> =0.1-0.2, and have coercive fields up to 400 Oe. The dependence of magnetic properties on the sample morphology is described and discussed. Possible applications are briefly mentioned.
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.
