Structural Studies of Co/Cu and Co/Ru Interfaces Using 59Co NMR Method |
| M. Wójcik, E. Jędryka, S. Nadolski Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland D. Kubinski, M. Parsons and H. Holloway Ford Research Laboratory, SRL/MD3028, Dearborn, MI 48121-2053, USA |
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| The structural and magnetic properties of three magnetron sputtered multilayers at the 2nd maximum of antiferromagnetic coupling were studied using 59Co NMR spectroscopy: [Co(20 Å)/Cu(20 Å)]20, [Co(20 Å )/ Ru(18 Å)]20 and a heterostructure, in which non-magnetic spacers alternated between Cu and Ru. Co/Cu interfaces were found to be relatively sharp, extended over 3 monolayers, while the Co/Ru interfaces extend over 6 monolayers due to the good miscibility of Co and Ru. The NMR restoring field in the heterostructure is found to be the average of the restoring fields in both reference samples. |
| DOI: 10.12693/APhysPolA.97.551 PACS numbers: 76.60.Lz, 75.70.Pa, 75.70.Cn, 75.20.En |