Influence of lateral geometry on magnetoresistance and magnetisation reversal in Ni80Fe20 wires

A. Hirohata; C.C. Yao; D.G. Hasko; W.Y. Lee; Y.B. Xu; J.A.C. Bland

doi:10.1109/20.801007

Influence of lateral geometry on magnetoresistance and magnetisation reversal in Ni80Fe20 wires

A. Hirohata, C.C. Yao, D.G. Hasko, W.Y. Lee, Y.B. Xu, J.A.C. Bland

Electronic Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The magnetisation reversal processes and magnetoresistance behaviour in micron-sized Ni80Fe20 wires with triangular and rectangular modulated width have been studied. The wires were fabricated by electron beam lithography and a lift-off process. A combination of magnetic force microscopy (MFM), magneto-optical Kerr effect (MOKE) and magnetoresistance (MR) measurements shows that the lateral geometry of the wires greatly influences the magnetic and transport properties. The width modulations modify not only the shape-dependent demagnetising fields, but also the current density. The correlation between the lateral geometry, the magnetic and the transport properties is discussed based on MFM, MOKE and MR results.

Original language	English
Pages (from-to)	2865-2867
Number of pages	2
Journal	IEEE Transactions on Magnetics
Volume	35
Issue number	5 (Part 1)
DOIs	https://doi.org/10.1109/20.801007
Publication status	Published - Sept 1999

Bibliographical note

© 1999 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

Keywords

magnetoresistance
magnetisationation reversal
MFM
MOKE

Access to Document

10.1109/20.801007

xuyb12.pdf

http://dx.doi.org/10.1109/20.801007

Cite this

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title = "Influence of lateral geometry on magnetoresistance and magnetisation reversal in Ni80Fe20 wires",

abstract = "The magnetisation reversal processes and magnetoresistance behaviour in micron-sized Ni80Fe20 wires with triangular and rectangular modulated width have been studied. The wires were fabricated by electron beam lithography and a lift-off process. A combination of magnetic force microscopy (MFM), magneto-optical Kerr effect (MOKE) and magnetoresistance (MR) measurements shows that the lateral geometry of the wires greatly influences the magnetic and transport properties. The width modulations modify not only the shape-dependent demagnetising fields, but also the current density. The correlation between the lateral geometry, the magnetic and the transport properties is discussed based on MFM, MOKE and MR results.",

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note = "{\textcopyright} 1999 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.",

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T1 - Influence of lateral geometry on magnetoresistance and magnetisation reversal in Ni80Fe20 wires

AU - Hirohata, A.

AU - Yao, C.C.

AU - Hasko, D.G.

AU - Lee, W.Y.

AU - Xu, Y.B.

AU - Bland, J.A.C.

N1 - © 1999 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

PY - 1999/9

Y1 - 1999/9

N2 - The magnetisation reversal processes and magnetoresistance behaviour in micron-sized Ni80Fe20 wires with triangular and rectangular modulated width have been studied. The wires were fabricated by electron beam lithography and a lift-off process. A combination of magnetic force microscopy (MFM), magneto-optical Kerr effect (MOKE) and magnetoresistance (MR) measurements shows that the lateral geometry of the wires greatly influences the magnetic and transport properties. The width modulations modify not only the shape-dependent demagnetising fields, but also the current density. The correlation between the lateral geometry, the magnetic and the transport properties is discussed based on MFM, MOKE and MR results.

AB - The magnetisation reversal processes and magnetoresistance behaviour in micron-sized Ni80Fe20 wires with triangular and rectangular modulated width have been studied. The wires were fabricated by electron beam lithography and a lift-off process. A combination of magnetic force microscopy (MFM), magneto-optical Kerr effect (MOKE) and magnetoresistance (MR) measurements shows that the lateral geometry of the wires greatly influences the magnetic and transport properties. The width modulations modify not only the shape-dependent demagnetising fields, but also the current density. The correlation between the lateral geometry, the magnetic and the transport properties is discussed based on MFM, MOKE and MR results.

KW - magnetoresistance

KW - magnetisationation reversal

KW - MFM

KW - MOKE

U2 - 10.1109/20.801007

DO - 10.1109/20.801007

M3 - Article

SN - 0018-9464

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