Magnetocrystalline anisotropy in glancing angle deposited Permalloy nanowire arrays

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dc.contributor.authorAlouach, H
dc.contributor.authorFujiwara, H
dc.contributor.authorMankey, GJ
dc.contributor.otherUniversity of Alabama Tuscaloosa
dc.date.accessioned2019-07-19T14:18:56Z
dc.date.available2019-07-19T14:18:56Z
dc.date.issued2005-06-28
dc.description.abstractThe magnetic anisotropy and properties of Permalloy (Ni80Fe20) nanowire arrays fabricated by glancing angle deposition with substrate rotation were studied. Epitaxial Cu nanowires, with the long axis textured along the Cu[111] crystallographic direction, were used as a seed layer to grow the Ni80Fe20 nanowires. The nanowires exhibit a strong Ni80Fe20[311] texture as shown by x-ray diffraction, with a Ni80Fe20[111] diffraction peak uniformly distributed about the wire's long axis normal to the substrate. Hysteresis loops taken at different angular orientations show that the magnetization saturates first along the wire's growth direction normal to the substrate. Samples with an aspect ratio of approximately one have equal in- and out-of-plane coercivity. At low aspect ratios (similar to 0.5-1.5), the angular dependence of the remanence shows that the maximum remanence lies on the surface of a cone with its axis along the substrate normal. A model which contains biaxial anisotropy with a symmetry axis normal to the substrate was found to qualitatively explain the characteristics of the observed hysteresis loops. An anisotropy constant on the order of 10(6) erg/cc is necessary to explain the observed behavior, which is much larger than that of bulk Ni80Fe20 (c) 2005 American Vacuum Society.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.citationAlouach, H., Fujiwara, H., Mankey, G. (2005): Magnetocrystalline Anisotropy in Glancing Angle Deposited Permalloy Nanowire Arrays. Journal of Vacuum Science and Technology A, 23(4). DOI: https://doi.org/10.1116/1.1938978
dc.identifier.doi10.1116/1.1938978
dc.identifier.orcidhttps://orcid.org/0000-0003-3163-5159
dc.identifier.orcidhttps://orcid.org/0000-0003-3163-5159
dc.identifier.urihttp://ir.ua.edu/handle/123456789/6005
dc.languageEnglish
dc.language.isoen_US
dc.publisherAVS American Institute of Physics
dc.subjectGROWTH
dc.subjectFILMS
dc.subjectMaterials Science, Coatings & Films
dc.subjectPhysics, Applied
dc.subjectMaterials Science
dc.subjectPhysics
dc.titleMagnetocrystalline anisotropy in glancing angle deposited Permalloy nanowire arraysen_US
dc.typetext
dc.typeArticle
dc.typeProceedings Paper

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