Colloquium: Dr. Harold Hjalmarson

Thursday Nov 13, 4:00–5:00pm, 211 Witmer Hall.

Physics at Interfaces between Dissimilar Materials

Dr. Harold P. Hjalmarson, Radiation Effects Theory Department, Sandia National Laboratories

The unifying theme in this seminar is the effects of a material interface. This physics will be illustrated by discussing a few phenomena for which a material interface has an important effect. These phenomena include enhanced low dose-rate sensitivity (ELDRS), negative-bias temperature instability (NBTI), memristors and electrical breakdown at a surface. Most of the theoretical results to be discussed are obtained by continuum solutions to kinetic equations involving transport and chemical reactions of species such as electrons, holes, hydrogen atoms and vacancies and other defect species in a solid.