Anisotropy characteristics in a Permalloy film induced by a nonuniform magnetic field |
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Authors: | B A Belyaev V P Kononov S G Ovchinnikov |
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Institution: | (1) L. V. Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, 660036 Krasnoyarsk, Russia |
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Abstract: | Inhomogeneities were observed for the first time in the magnetic structure of a thin Permalloy film, induced by a strongly
nonuniform magnetic field applied in the plane of the substrate during fabrication of the samples. The films were obtained
by vacuum deposition using a molecular-beam epitaxy system. A nonuniform field was created on the substrate using four samarium-cobalt
magnets. The anisotropy of local sections of the samples was measured using a scanning-ferromagnetic-resonance spectrometer.
A strong correlation was observed between the distribution of the magnitude and direction of the local magnetic anisotropy
of the film and the magnetic-field distribution in the plane of the substrate.
Fiz. Tverd. Tela (St. Petersburg) 40, 1291–1293 (July 1998) |
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