Berlin 2015 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 2: Tutorial on Ferroics (DF with MA/TT)

MA 2.1: Tutorium

Sonntag, 15. März 2015, 16:00–16:50, H 0107

Fundamentals of ferroelectric materials — •Susan Trolier-McKinstry — Penn State University, University Park, PA, USA

This tutorial will cover the fundamental phenomena that underpin the field of ferroelectricity, with an emphasis on the relationship between crystal structure and the allowed domain states. An introduction will be made to ferroelectricity, pyroelectricity, piezoelectricity, and the origins of the dielectric response. The crystal structures of key materials, including perovskites, LiNbO₃, the tungsten bronzes, and polymer ferroelectrics will be introduced, along with the link between the loss of symmetry elements and the allowed domain states. The tutorial will conclude with an introduction to the movement of domain walls, and the influence that this has on the properties of ferroelectric materials.