DPG Phi
Verhandlungen
Verhandlungen
DPG

Regensburg 2016 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

MA: Fachverband Magnetismus

MA 39: Magnetic Particles

MA 39.3: Vortrag

Donnerstag, 10. März 2016, 10:00–10:15, H31

Strain and Electric Control of Magnetism in Supercrystalline Iron Oxide Nanoparticle - BaTiO3 composites — •Liming Wang1, Oleg Petracic1, Emmanuel Kentzinger1, Ulrich Rücker1, Alexandros Koutsioumpas2, Stefan Mattauch2, and Thomas Brückel1,21Jülich Centre for Neutron Science JCNS and Peter Grünberg Institut PGI, JARA-FIT, Forschungszentrum Jülich GmbH, Jülich — 2Jülich Centre for Neutron Science JCNS at Heinz Maier-Leibnitz Zentrum MLZ, Forschungszentrum Jülich GmbH, n, Lichtenbergsrtr. 1, Graching

The manipulation of magnetism of self-assembled iron oxide nanoparticle (NP) monolayers on top of BaTiO3 (BTO) single crystals is reported. We observe strain induced magnetoelectric coupling (MEC) as shown by measurements of both the magnetization and magneto-electric ac susceptibility (MEACS). The magnetization, coercivity, remanent magnetization and MEACS signal as function of temperature shows abrupt jumps at the BTO phase transitions temperatures. A magnetic "hardening effect" is observed with variation of strain or electric field. Grazing incident small angle X-ray scattering (GISAXS) and scanning electron microscopy (SEM) confirms a hexagonal close-packed supercrystalline order of the NP monolayers.

100% | Mobil-Ansicht | English Version | Kontakt/Impressum/Datenschutz
DPG-Physik > DPG-Verhandlungen > 2016 > Regensburg