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Title: Positive domain wall resistance of 180 degrees Neel walls in Co thin films
Authors: Buntinx, D ×
Brems, Steven
Volodine, Alexandre
Temst, Kristiaan
Van Haesendonck, Christian #
Issue Date: Jan-2005
Publisher: American physical soc
Series Title: Physical Review Letters vol:94 issue:1 pages:1-4
Article number: 017204
Abstract: We measured the intrinsic domain wall resistance (DWR) of 180degrees Neel walls in a polycrystalline Co thin film deposited on top of a patterned antiferromagnetic CoO template. After field cooling through the CoO blocking temperature, exchange bias induces a spatially modulated coercivity of the Co film, resulting in a periodic domain pattern with 180degrees Neel walls. The intrinsic DWR is determined unambiguously by using rotating magnetic fields that result in a reversible creation and annihilation of the Neel walls. In contrast with earlier reports, the DWR is positive and in agreement with models based on the giant magnetoresistance mechanism. A reliable, quantitative determination of the DWR requires careful numerical evaluation of the anisotropic magnetoresistance effect.
URI: 
ISSN: 0031-9007
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
Nuclear and Radiation Physics Section
× corresponding author
# (joint) last author

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