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MA: Fachverband Magnetismus

MA 52: Poster II

MA 52.64: Poster

Thursday, March 15, 2018, 15:00–18:00, Poster C

Voltage control of magnetism in oxide heterostructures: A combined scattering and electron microscopy investigation — •Tanvi Bhatnagar¹, Anirban Sarkar¹, Markus Waschk¹, Emmanuel Kentzinger¹, Andras Kovacs², Rafal Dunin-Borkowski², and Thomas Brückel^1,3 — ¹Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science (JCNS-2) and Peter Grünberg Institut (PGI-4), JARA-FIT 52425 Jülich, Germany — ²Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany — ³Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science at MLZ, Lichtenbergstr. 1, 85784 Garching, Germany

The voltage control of magnetism in oxide heterostructures e.g. LaxSr1-xMnO3/BaTiO3 has drawn a considerable interest due to strong couplings between lattice, charge, spin and orbital degrees of freedom at the interfaces and for improving the functionality of future spintronic devices. Here, we use advanced deposition techniques (including oxide molecular beam epitaxy) and investigate the chemical and magnetic structure of the resulting interfaces as a function of electric field. For this investigation, we make use of a combination of advanced scattering (neutron and X-ray) methods and electron microscopy and spectroscopy (including off-axis electron holography and electron magnetic circular dichroism).