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KR: Fachgruppe Kristallographie

KR 1: Symposium on Ferroic Domain walls (SYDW)

KR 1.1: Invited Talk

Monday, March 16, 2015, 09:30–10:00, H 0105

Domain walls: from conductive paths to technology roadmaps — •Gustau Catalan — ICREA-Institucio Catalana de Recerca i Estudis Avançats, Barcelona — ICN2-Institut Catala de Nanociencia i Nanotecnologia, Campus UAB, Bellaterra, Barcelona

In this talk, I would like to give a bird's eye view of the field of domain wall nanoelectronics, starting from some basic physics, through a summary of the state of the art, and finishing with a brief and non-exhaustive discussion of unresolved problems. Topics will include the origin(s) of conductivity in perovskite domain walls, the internal phase diagram of domain walls, the interaction of domain walls with other interfaces, how much do we (not) know about the structure, energy cost and dynamics of domain walls, and some strategies for controlling their nucleation and motion.

Disclaimer: The talk will cover much ground in a short time, and will include many results and ideas that are not mine; important works may be misrepresented or underrepresented. I apologize in advance.