Regensburg 2016 – wissenschaftliches Programm

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DF: Fachverband Dielektrische Festkörper

DF 9: Focus Session: Skyrmions meet Multiferroicity

DF 9.1: Topical Talk

Mittwoch, 9. März 2016, 09:30–10:00, H25

Functional domain walls in multiferroics — •Dennis Meier — ETH Zürich, Switzerland

During the last decade a wide variety of novel and fascinating correlation phenomena has been discovered at domain walls in multiferroic bulk systems, ranging from unusual electronic conductance to inseparably entangled spin and charge degrees of freedom. The domain walls represent quasi-2D functional objects that can be induced, positioned, and erased on demand, bearing considerable technological potential for future nanoelectronics. Most of the challenges that remain to be solved before turning related device paradigms into reality, however, still fall in the field of fundamental condensed matter physics and materials science. In my talk I will provide an overview of seminal experimental findings gained on electric and magnetic domain walls in multiferroic bulk materials. A special focus is put on the physical properties that emerge at so-called charged domain walls and the added functionality that arises from coexisting magnetic order. The goal is to draw attention to the persistent challenges and identify future key directions for the research on functional domain walls in multiferroics.