Regensburg 2010 – scientific programme

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MM: Fachverband Metall- und Materialphysik

MM 27: HV Viehland

MM 27.1: Invited Talk

Wednesday, March 24, 2010, 09:30–10:00, H16

Multiferroic Composites — •Dwight Viehland — Virginia Tech, Blacksburg VA USA

Multi-functional materials can respond to more than one external stimulus. One important family of such materials would be those with magnetization-polarization interactions: however, prior searches for such systems with strong exchange have proven elusive. In this talk, we will discuss advances in magnetoelectric materials. Investigations of multi-ferroic behavior will be presented for magnetoelectric (i) laminate composites of piezoelectric and magnetostrictive layers; (ii) self-assembled two phase nanocomposite layers; and (iii) self assembled two phase single grain particles. We will demonstrate that strong interaction can be achieved between the spin and polarization subsystems.