Magnetic vortex evolution in self-assembled La0.7Sr0.3MnO3 nanoislands under in-plane magnetic field

J. Zabaleta, M. Jaafar, A. Asenjo, S. Agramunt-Puig, N. Del-Valle, C. Navau, A. Sanchez, T. Puig, X. Obradors and N. Mestres. APL Materials. 2, 076111 (2014) DOI: The magnetic vortex formation at room temperature and its evolution under in-plane magnetic field is studied in chemically grown self-assembledLa0.7Sr0.3MnO3 nanoislands of less than 200 nm in width. We use variable field magnetic force microscopy and numerical simulations to confirm that the vortex state is ubiquitous in these square-base pyramid shape epitaxial La0.7Sr0.3MnO3 nanostructures, and that it requires in-planemagnetic fields below 40 kA/m to be annihilated.

Institut de Ciència de Materials de Barcelona ICMAB CSIC


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