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


Magnetic particle nanosensing by nucleation of domain walls in ultra-thin CoFeB/Pt devices

Author(s): James Wells, Patryk Krzysteczko, Ambra Caprile, Boris Gribkov, Hans Schumacher, J-H Lee, Russell Cowburn and Olga Kazakova
Journal: IEEE Transactions on Magnetics
Year: 2016
Month: February
Day: 2
Volume: PP
Issue: 99
DOI: 10.1109/TMAG.2016.2524074
Abstract: A novel nanosensor is demonstrated based on domain wall nucleation in perpendicular anisotropy CoFeB/Pt components, with an electrical read-out based on the anomalous Hall effect. Notch-shaped constrictions within perpendicular CoFeB/Pt wires are used to control the local anisotropy. The successful detection of a single NdFeB microbead is demonstrated, based on variations in domain wall nucleation in a notched nanowire in the presence of the bead. Maps of the sensor response obtained using scanning gate microscopy measurements are presented. We describe a number of potential advantages of the nucleation sensing technique as compared with existing domain-wall based magnetic bead sensors using in-plane magnetised materials.

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