Title :
Permanent-magnet properties of FePt, FePt:Fe and FePt:Co nanocomposite films
Author :
Zhou, J. ; Skomski, Ralph ; Yan, M.L. ; Sellmyer, David J.
Author_Institution :
Behlen Lab. of Phys., Nebraska Univ., Lincoln, NE, USA
Abstract :
Summary form only given. The high anisotropy of face-centered tetragonal FePt, about 6.6/spl times/10/sup 7/ ergs/cc, makes it a good candidate for hard-soft permanent-magnet composites with high energy products. In the present work, we prepare and characterize thermally processed FePt/Fe and FePt/Co multilayers and investigate the hysteresis loops of the partially textured hard-magnetic materials and its relationship to the nanostructure of the films.
Keywords :
alloying additions; cobalt alloys; coercive force; ferromagnetic materials; iron alloys; magnetic hysteresis; magnetic multilayers; magnetic thin films; nanocomposites; permanent magnets; platinum; soft magnetic materials; sputtered coatings; 500 to 1000 A; 60 sec; 650 C; FePt; FePt:Co; FePt:Fe; face-centered tetragonal; hard-soft permanent-magnet composites; high anisotropy; high energy products; hysteresis loops; nanocomposite films; nanostructure; permanent-magnet properties; Anisotropic magnetoresistance; Coercive force; Iron; Magnetic analysis; Magnetic anisotropy; Magnetic hysteresis; Magnetic materials; Magnetic multilayers; Perpendicular magnetic anisotropy; Rapid thermal annealing;
Conference_Titel :
Magnetics Conference, 2002. INTERMAG Europe 2002. Digest of Technical Papers. 2002 IEEE International
Conference_Location :
Amsterdam, The Netherlands
Print_ISBN :
0-7803-7365-0
DOI :
10.1109/INTMAG.2002.1001139
