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The effect of magnetic anisotropy on the spin configurations of patterned La(0.7)Sr(0.3)MnO3 elements.

Authors
Type
Published Article
Journal
Journal of Physics Condensed Matter
0953-8984
Publisher
IOP Publishing
Publication Date
Volume
25
Issue
17
Pages
176004–176004
Identifiers
DOI: 10.1088/0953-8984/25/17/176004
PMID: 23567900
Source
Medline

Abstract

We study the effect of magnetocrystalline anisotropy on the magnetic configurations of La0.7Sr0.3MnO3 bar and triangle elements using photoemission electron microscopy imaging. The dominant remanent state is a low energy flux-closure state for both thin (15 nm) and thick (50 nm) elements. The magnetocrystalline anisotropy, which competes with the dipolar energy, causes a strong modification of the spin configuration in the thin elements, depending on the shape, size and orientation of the structures. We investigate the magnetic switching processes and observe in triangular shaped elements a displacement of the vortex core along the easy axis for an external magnetic field applied close to the hard axis, which is well reproduced by micromagnetic simulations.

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