Realizing a high magnetic moment in Gd/Cr/FeCo: The role of the rare earth

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    The search for materials or systems exhibiting a high magnetic saturation has been of longstanding importance. It has been suggested that increased saturation could be achieved by coupling a transition metal via a spacer to a rare earth. We report Gd/Cr/Fe70Co30 multilayer stacks and find reduced yet modulating magnetic moment as a function of Cr thickness. Through a micro structural analysis the lowered moment is indicated by the nucleation of the ultrathin Gd films into an fcc phase. We discuss the possible solution in terms of quasi-perfect lattice match seed material to promote growth of hcp Gd.



    Original languageEnglish
    Article number092403
    Number of pages4
    JournalApplied Physics Letters
    Journal publication date04 Mar 2013
    Issue number9
    Publication statusPublished - 04 Mar 2013

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    ID: 2748191