Magnetic properties of permalloy multilayers with alternating perpendicular anisotropies

M. Maicas, R. Ranchal (), C. Aroca, P. Sánchez and E. López

The European Physical Journal B: Condensed Matter and Complex Systems, 2008, vol. 62, issue 3, 267-270

Abstract: This work reports the magnetic properties of sputtered permalloy (Ni 80 Fe 20 ) multilayers grown changing the anisotropy direction 90° in successive layers. Magnetic measurements show how the saturating field can be controlled by the thickness ratio between different anisotropy layers and how the coercive field is reduced increasing the number of layers. The linearity of the hysteresis loop is also improved when increasing the number of layers. Magnetic measurements are compared to simulations based on a Stoner-Wolfarth magnetization rotation mechanism. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2008

Keywords: 75.30.Gw Magnetic anisotropy; 81.15.Cd Deposition by sputtering; 75.60.Ej Magnetization curves; hysteresis; Barkhausen and related effects (search for similar items in EconPapers)
Date: 2008
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DOI: 10.1140/epjb/e2008-00163-4

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