Direct imaging of domain-wall interactions in Ni{sub 80}Fe{sub 20} planar nanowires

Journal Article · Fri Jan 01 00:00:00 EST 2010 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.81.020410· OSTI ID:21366651

Hayward, T J; Bryan, M T; Fundi, P M; Gibbs, M R. J.; Allwood, D A ^[1]; Fry, P W ^[2]; Im, M -Y; Fischer, P ^[3]

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1. Department of Engineering Materials, University of Sheffield, Sheffield S1 3JD (United Kingdom)
2. Nanoscience and Technology Centre, University of Sheffield, Sheffield S3 7HQ (United Kingdom)
3. Center for X-Ray Optics, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

We have investigated magnetostatic interactions between domain walls in Ni{sub 80}Fe{sub 20} planar nanowires using magnetic soft x-ray microscopy and micromagnetic simulations. In addition to significant monopole-like attraction and repulsion effects we observe that there is coupling of the magnetization configurations of the walls. This is explained in terms of an interaction energy that depends not only on the distance between the walls, but also upon their internal magnetization structure.

• OSTI ID: 21366651
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Vol. 81, Issue 2; Other Information: DOI: 10.1103/PhysRevB.81.020410; (c) 2010 The American Physical Society; ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
CONFIGURATION
COUPLING
INTERACTIONS
IRON ALLOYS
MAGNETIZATION
MICROSCOPY
MONOPOLES
NANOSTRUCTURES
NICKEL ALLOYS
QUANTUM WIRES
SIMULATION
SOFT X RADIATION
ALLOYS
ELECTROMAGNETIC RADIATION
IONIZING RADIATIONS
RADIATIONS
TRANSITION ELEMENT ALLOYS
X RADIATION