DMI Signature Lecture Presented by Prof. Elizabeth Dickey

Abstract: The rational design and control of defects in electronic ceramics is critical for property control and optimizing electronic or electrochemical device performance. Point defects, in particular, influence properties such as conductivity, electric polarization and, as most recently discovered, the ability to switch polarization to engender ferroelectricity in wurtzite-structure materials. In polycrystalline materials, the interactions between point defects and higher dimensional defects, such as grain boundaries and interfaces, also affect the macroscopic material response. Furthermore, once in device applications, defect interactions with external fields influence material performance and, in some cases, instigate material degradation and failure. This lecture will review developments in our understanding of defect disorder and defect dynamics in electronic ceramics. It will highlight the role of transmission electron microscopy techniques for assessing local to mesoscale disorder in Hosted by: Miaofang Chi Location: Fitzpatrick Center, Schiciano Auditorium Reception to follow from 1:00pm-2:00pm Location: Fitzpatrick Center, Ground Level Atrium