Abstract
The magnetic behavior of Mo/Fe/Co three-component superlattices with varied thickness of Co layer was investigated. [Mo(12 A)Fe(10 A)Co(x A)] × 100 (x = 4–25) magnetic superlattices have been obtained by cathode sputtering from two opposing cathodes in a high voltage (HV) discharge with oscillating electrons on substrates of mica (muscovite). The basic magnetic properties were measured along and across the planes of the samples. There are such oscillatory characteristics of the basic magnetic parameters as spontaneous magnetization, remanent magnetization, and coercivity field on the Co thickness with a period of ∼7 A. This could be due to interference effects in electron waves leading to the formation of quantum wells in the interfaces. Some samples Mo/Fe/Co have drag and a stepped shape of hysteresis loops, which is related to the existence of the vortex-type magnetic structure and the dynamics of their behavior in magnetic field. This is evidenced by atomic force microscope studies.
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