List of JRP papers

The 'SpinCal EXL04' Joint Research Project has produced so far:

  • 24 papers in peer-reviewed journals, among which:
  • 5 papers in journals with Impact Factor greater than 5

Publication single view

Title:

Anisotropic Magnetoresistance Effect in Sub-Micron Nickel Disks

Author(s): T. Wren and O. Kazakova
Journal: Journal of Applied Physics
Year: 2015
Volume: 117
Issue: 17E134
Pages: 17E134 1-4
DOI: 10.1063/1.4918967
Abstract: The hysteretic transport properties of vortex states in sub-micron nickel disks are measured using the anisotropic magnetoresistance (AMR) effect and correlated with the magnetization state of the disks using in-situ magnetic force microscopy and micromagnetic modelling. The magnetoresistance behavior is described by a simple AMR model; however, the nucleation and annihilation fields of the vortex state differ when the magnetic field is applied parallel (0°) or perpendicular (90°) to the applied current within the sample plane. In the 0° orientation, the vortex magnetoresistance behaves similar to that reported in the literature. However, in the 90° orientation, the vortex nucleates and annihilates at lower applied fields than in the 0° orientation. Moreover, in the latter orientation, the annihilation process occurs in a two-step transition. This difference is attributed to the effect of the inhomogeneous current distribution within the magnetic disk.

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