Dissertation: Bryan Esser, Study of novel magnetic configurations and structures to develop a method for extracting 3D ordering information from 2D experimental images

Ph.D. Candidate advised by Dr. David McComb

All dates for this event occur in the past.

CEMAS Theater
CEMAS Theater
1305 Kinnear Rd
Columbus, OH 43212
United States

Abstract

Materials for next-generation device applications will rely on novel magnetic configurations and structures. A number of experimental techniques exist to study such materials to establish structure-property relationships. In this work, high-resolution electron microscopy and spectroscopy are paired with first principles calculations and a quantum mechanical model for electron scattering. The effect of atomic-scale ordering on image contrast in scanning transmission electron microscopy is studied in detail to develop a method for extracting 3D ordering information from 2D experimental images. In addition, magnetic skyrmion materials are investigated in situ to correlate the atomic and magnetic structures as a function of applied magnetic field and temperature.