MSE Special Speaker: Dr. Núria Bagués Salguero, The Ohio State University
2040 Fontana Labs
140 W. 19th Ave
Columbus, OH 43210
United States
The Ohio State University
Local Structure and Magnetic Characterization of Functional Materials by Transmission Electron Microscopy
Recent years have seen an enormous growth in research into spintronic materials as potential candidates for data storage devices. However, to design and create future memory devices, it is essential to understand the correlation between structure and properties of these materials. Structural defects or nanostructures can be beneficial to the overall functionality of materials, as in the case of strain relief defects with a tendency to self-organize. These defects offer a unique opportunity for bottom-up fabrication of functional nanodevices. Characterizing these structures typically requires the use of multiple and often novel methods in transmission electron microscopy (TEM). This talk will present two examples of such methods: First, a detailed study of atomic resolution imaging combined with spectroscopic techniques to characterize the complex structure of misfit dislocation core in a complex oxide heteroepitaxial system (La0.67Sr0.33MnO3/LaAlO3 (LSMO/LAO)); and second, visualizing and characterizing magnetic textures (e.g., skyrmions) within confined structures in FeGe specimens.
Bio
Dr. Núria Bagués received her bachelor's degree in Geology from the Autonomous University of Barcelona (UAB) in 2010. She received her master’s degree in Geology in 2011 through a combined program at UAB and the University of Barcelona, and then continued on to earn her Ph.D. in Materials Science from UAB in 2017.
Dr. Bagués is an expert in combining high-resolution transmission electron microscopy (TEM) and spectroscopic analysis, such as electron dispersive x-ray spectroscopy (EDS) and electron energy loss spectroscopy (EELS), to characterize the microstructure, interfaces, and defects in complex oxide epitaxial thin films and functional nanostructures. Her current research focuses on using CEMAS’s Titan TEM to study and image magnetic textures via Lorentz microscopy.
Zoom option
https://osu.zoom.us/j/98215983115?pwd=aWF5TkI0a2ZqMzNzbnlkRVpxa3FKUT09
Meeting ID: 982 1598 3115
Password: 657948