Magnetoresistance due to domain walls in an epitaxial microfabricated Fe wire

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

doi:10.1063/1.122373

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 journal › Article › peer-review

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 language	English (US)
Pages (from-to)	1298-1300
Number of pages	3
Journal	Applied Physics Letters
Volume	73
Issue number	9
DOIs	https://doi.org/10.1063/1.122373
State	Published - 1998

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.122373

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title = "Magnetoresistance due to domain walls in an epitaxial microfabricated Fe wire",

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.",

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year = "1998",

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T1 - Magnetoresistance due to domain walls in an epitaxial microfabricated Fe wire

AU - Rüdiger, U.

AU - Yu, J.

AU - Kent, A. D.

AU - Parkin, S. S.P.

PY - 1998

Y1 - 1998

N2 - 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.

AB - 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.

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JF - Applied Physics Letters

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Magnetoresistance due to domain walls in an epitaxial microfabricated Fe wire

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