Magnetoresistance due to domain walls in an epitaxial microfabricated Fe wire

U. Rüdiger, J. Yu, A. D. Kent, S. S P Parkin

    Research output: Contribution to journalArticle

    Abstract

    The domain wall (DW) contribution to magnetoresistance has been investigated using an epitaxial microfabricated bcc (110) Fe wires of 2 μm linewidth. A strong in-plane uniaxial component to the magnetic anisotropy perpendicular to the wire axis causes a regular stripe domain pattern with closure domains. The stripe domain width in zero-applied magnetic field is strongly affected by the magnetic history and can be continuously varied from 0.45 to 1.8 μm. This enables a measurement of the resistivity as a function of DW density in a single wire. Clear evidence is presented that the resistivity is reduced in the presence of DWs at low temperatures.

    Original languageEnglish (US)
    Pages (from-to)1298-1300
    Number of pages3
    JournalApplied Physics Letters
    Volume73
    Issue number9
    DOIs
    StatePublished - 1998

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    domain wall
    wire
    electrical resistivity
    closures
    histories
    anisotropy
    causes
    magnetic fields

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

    Cite this

    Magnetoresistance due to domain walls in an epitaxial microfabricated Fe wire. / Rüdiger, U.; Yu, J.; Kent, A. D.; Parkin, S. S P.

    In: Applied Physics Letters, Vol. 73, No. 9, 1998, p. 1298-1300.

    Research output: Contribution to journalArticle

    Rüdiger, U. ; Yu, J. ; Kent, A. D. ; Parkin, S. S P. / Magnetoresistance due to domain walls in an epitaxial microfabricated Fe wire. In: Applied Physics Letters. 1998 ; Vol. 73, No. 9. pp. 1298-1300.
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