Author:

Keywords:

antiferromagnetic materials, cobalt compounds, coercive force, ferromagnetic materials, giant magnetoresistance, iron, magnetic domain walls, magnetic thin films, metallic thin films, resistivity, magnetoresistance, ferromagnets, wires, metal, Science & Technology, Physical Sciences, Physics, Applied, Physics, RESISTIVITY, MAGNETORESISTANCE, FERROMAGNETS, WIRES, METAL, IRON, 02 Physical Sciences, 09 Engineering, 10 Technology, Applied Physics, 40 Engineering, 51 Physical sciences

Abstract:

The intrinsic domain wall resistance (DWR) of 180 degrees Neel walls in a polycrystalline Fe film is determined by creating a periodic domain pattern, obtained by locally inducing exchange bias. After field cooling, the coercivity is spatially modulated, resulting in periodic 180 degrees domain walls. To determine the intrinsic DWR, a rotating magnetic field is used to reversibly create and annihilate the domain walls. After correcting for the anisotropic magnetoresistance, the extracted DWR is positive.