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Magnetic Studies of Spin Wave Excitations in Ni/Cu Multilayers
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Journal of Modern Physics·Volume 02 (2011)·Pages 1285–1289·Published 10 November 2011·DOI10.4236/jmp.2011.211159
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Abstract
The magnetic properties of Ni/Cu multilayers, prepared by the electron beam evaporation method under ultra high vacuum conditions, have been systematically studied by magnetic measurements. The temperature dependence of the spontaneous magnetization M (T) is well described by a T3/2 law. A spin wave theory has been used to explain the magnetization versus temperature. Based on this theory, the approximate values for the exchange interactions have been obtained.
KeywordsNi/Cu MultilayerMagnetizationSpin Wave ExcitationsExchange Interactions
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