Regensburg 2019 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 46: Magnetic particles and clusters
MA 46.7: Vortrag
Donnerstag, 4. April 2019, 13:00–13:15, H52
Strain and electric-field control of magnetism in iron oxide nanoparticle - BTO composites — Li-Ming Wang1, •Oleg Petracic1, Emmanuel Kentzinger1, Ulrich Rücker1, Jürgen Schubert2, Stefan Mattauch3, Alexandros Koutsioubas3, Markus Schmitz1, Xian-Kui Wei4, Marc Heggen4, Vanessa Leffler5, Sascha Ehlert5, and Thomas Brückel1 — 1Jülich Centre for Neutron Science JCNS and Peter Grünberg Institut PGI, JARA-FIT, Forschungszentrum Jülich GmbH — 2Peter Grünberg Institute (PGI9-IT), JARA-Fundamentals of Future Information Technology Forschungszentrum Jülich GmbH — 3Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ) Forschungszentrum Jülich GmbH, Garching — 4Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute, Forschungszentrum Jülich GmbH — 5Jülich Centre for Neutron Science JCNS-1 and Institute of Complex Systems ICS-1, Forschungszentrum Jülich GmbH
Ferrimagnetic iron oxide nanoparticle monolayers either on top of ferroelectric BaTiO3 (BTO) substrates or embedded into a BTO film were prepared and a magnetoelectric coupling effect was observed. The data recorded at various electric field values show that the electric field is able to alter the magnetism of the nanoparticle monolayer by a strain mediated magnetoelectric coupling effect. The magnetic depth profile of the nanoparticle monolayer was probed by polarized neutron reflectivity.