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; N. Mestres

doi:10.1063/1.4891277

APL Materials (Jul 2014)

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,
N. Mestres

Affiliations

J. Zabaleta: Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus de la UAB, 08193 Bellaterra (Barcelona), Catalonia, Spain
M. Jaafar: Instituto de Ciencia de Materiales de Madrid, ICMM-CSIC, Sor Juana Inés de la Cruz 3, Cantoblanco, 28049 Madrid, Spain
A. Asenjo: Instituto de Ciencia de Materiales de Madrid, ICMM-CSIC, Sor Juana Inés de la Cruz 3, Cantoblanco, 28049 Madrid, Spain
S. Agramunt-Puig: Group of Smart Nanoengineered Materials, Nanomechanics and Nanomagnetism, Universitat Autònoma Barcelona, 08193 Bellaterra (Barcelona), Catalonia, Spain
N. Del-Valle: Grup d’Electromagnetisme, Departament de Física, Universitat Autònoma de Barcelona, 08193 Bellaterra (Barcelona), Catalonia, Spain
C. Navau: Grup d’Electromagnetisme, Departament de Física, Universitat Autònoma de Barcelona, 08193 Bellaterra (Barcelona), Catalonia, Spain
A. Sanchez: Grup d’Electromagnetisme, Departament de Física, Universitat Autònoma de Barcelona, 08193 Bellaterra (Barcelona), Catalonia, Spain
T. Puig: Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus de la UAB, 08193 Bellaterra (Barcelona), Catalonia, Spain
X. Obradors: Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus de la UAB, 08193 Bellaterra (Barcelona), Catalonia, Spain
N. Mestres: Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus de la UAB, 08193 Bellaterra (Barcelona), Catalonia, Spain

DOI: https://doi.org/10.1063/1.4891277
Journal volume & issue: Vol. 2, no. 7
pp. 076111 – 076111-8

Abstract

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The magnetic vortex formation at room temperature and its evolution under in-plane magnetic field is studied in chemically grown self-assembled La0.7Sr0.3MnO3 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-plane magnetic fields below 40 kA/m to be annihilated.

Published in APL Materials

ISSN: 2166-532X (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Technology: Chemical technology: Biotechnology; Science: Physics
Website: http://aplmaterials.aip.org

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