Title :
The effect of H2 annealing on the magnetic properties of electrodeposited CoPt
Author :
Rhen, F.M.F. ; Coey, J.M.D.
Author_Institution :
Dept. of Phys., Trinity Coll., Dublin, Ireland
Abstract :
CoPt films are electrodeposited from a chlorite-based bath. Magnetically isotropic samples are then obtained after annealing under vacuum and H2 reducing atmosphere with coercivities as high as 1 T. It is found that annealing under H2 is likely to decompose hydroxides incorporated during the electrodeposition which leads to a smaller amount of impurities in the films resulting in higher coercivity compared to vacuum annealing.
Keywords :
annealing; cobalt alloys; coercive force; electrodeposition; electrodeposits; impurities; magnetic thin films; permanent magnets; platinum alloys; 1 T; CoPt; H2 annealing; chlorite-based bath; coercivity; electrodeposited; hydroxides; impurities; magnetically isotropic magnets; vacuum annealing; Annealing; Atmosphere; Coercive force; Diffraction; Hydrogen; Magnetic films; Magnetic properties; Magnetization; Temperature; Thick films;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1463603
