Magnetic properties of Fe microstructures with focused ion beam-fabricated nano-constrictions

Studies of the magnetic properties of Fe microfabricated wires with a mechanically stable 40 to 120 nm-wide constriction produced with focused ion beam are reported. The 2 to 20 /spl mu/m-wide wires are fabricated by photolithography from 3 nm and 25 nm-thick epitaxial [110] bcc Fe films. This fabri...

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Published in:IEEE transactions on magnetics 2001-07, Vol.37 (4), p.2101-2103
Main Authors: Roshchin, I.V., Yu, J., Kent, A.D., Stupian, G.W., Leung, M.S.
Format: Article
Language:English
Subjects:
Applied sciences
Constrictions
Electronics
Exact sciences and technology
Fabrication
Ion beams
Iron
Lithography
Magnetic films
Magnetic force microscopy
Magnetic properties
Magnetism
Magnetooptic effects
Micro- and nanoelectromechanical devices (mems/nems)
Microstructure
Nanocomposites
Nanomaterials
Nanostructure
Preserves
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Wire
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cited_by cdi_FETCH-LOGICAL-c397t-3f212693ad6f92b36a1fa5f8044bf009031d7ba86a68feb3114e3f91080cb3353
cites cdi_FETCH-LOGICAL-c397t-3f212693ad6f92b36a1fa5f8044bf009031d7ba86a68feb3114e3f91080cb3353
container_end_page 2103
container_issue 4
container_start_page 2101
container_title IEEE transactions on magnetics
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creator Roshchin, I.V.
Yu, J.
Kent, A.D.
Stupian, G.W.
Leung, M.S.
description Studies of the magnetic properties of Fe microfabricated wires with a mechanically stable 40 to 120 nm-wide constriction produced with focused ion beam are reported. The 2 to 20 /spl mu/m-wide wires are fabricated by photolithography from 3 nm and 25 nm-thick epitaxial [110] bcc Fe films. This fabrication method appears to preserve the magnetic properties of the constriction. The structures are studied by MFM and by magneto-optic Kerr effect (MOKE) measurements. The ratio of the wire linewidth to its thickness determines the demagnetization factor and, therefore, influences the coercivity of the wire. Both a step in the width of the wire and a nano-constriction in the middle of the wire are found to be domain wall (DW) pinning centers.
doi_str_mv 10.1109/20.951066
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source IEEE Electronic Library (IEL) Journals
subjects Applied sciences
Constrictions
Electronics
Exact sciences and technology
Fabrication
Ion beams
Iron
Lithography
Magnetic films
Magnetic force microscopy
Magnetic properties
Magnetism
Magnetooptic effects
Micro- and nanoelectromechanical devices (mems/nems)
Microstructure
Nanocomposites
Nanomaterials
Nanostructure
Preserves
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Wire
title Magnetic properties of Fe microstructures with focused ion beam-fabricated nano-constrictions
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