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Three-dimensional simulation of the disturbance of magnetic domain walls by magnetic force microscope tips

Huo, S; Bishop, JEL; Tucker, JW; Rainforth, WM; Davies, HA; (1997) Three-dimensional simulation of the disturbance of magnetic domain walls by magnetic force microscope tips. In: JOURNAL OF APPLIED PHYSICS. (pp. 4686 - 4688). AMER INST PHYSICS

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Abstract

The micromagnetics of the interaction of a strong 3D magnetic force microscope tip with a 180 degrees asymmetric Bloch domain wall. in an 80 nm {100} iron film has been simulated numerically using cubic elements on a 3D lattice. The distortion of the wall is found to be quite well localized on the scale of the tip dimensions, 60x60 nm(2). The force of attraction between tip and film and the changes in self-energy of the wall and in the energy of the tip-sample system have been calculated for various positions of the tip. The strong attraction between tip and sample is slightly reduced (similar to 5%) when the tip is directly over the central vortex in the wall. (C) 1997 American Institute of Physics.

Type: Proceedings paper
Title: Three-dimensional simulation of the disturbance of magnetic domain walls by magnetic force microscope tips
Event: 41st Annual Conference on Magnetism and Magnetic Materials
Location: ATLANTA, GA
Dates: 1996-11-12 - 1996-11-15
Keywords: MICROMAGNETICS
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology
URI: http://discovery.ucl.ac.uk/id/eprint/94103
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