Event Scheduled for Feb 16, 2018
Event: MSE Seminar Speaker - Dr. Sohrab Ismail-Beigi
Time: 09:45 am
Details of Event:
Materials Science and Engineering
Invites you to a seminar by
Dr. Sohrab Ismail-Beigi
Professor, Applied Physics, Physics, and Mechanical Engineering and Materials Science, Yale University
Friday, February 16, 2018
Institute of Materials Science Building, Room 20, at 9:45 a.m.
Refreshments will be served at 9:30 a.m.
"Picoscale materials engineering applied to transition metal oxides"
Abstract: The atomic-scale structure and the bonding topology in a material determines its resulting properties. Alterable or reversible bond distortions at the picometer length scale in turn modify a material's electronic configuration and can give rise to functional properties. Picoscale bond perturbations represent the ultimate length scale for materials engineering:* any smaller and the effects are too small to matter; any larger and the bonds are completely broken so we are describing a different material. I will show how first principles theory, together with parallel experimental results from my Yale collaborators, provide two examples where we can design picoscale distortions in transition metal oxides in order to control relative 3d orbital energies and electron occupancies. This approach permits one to answer questions such as “what does Ni3+ do when its orbital degeneracy is broken strongly?” or “can one make an atom behave partway between two neighboring atoms in the periodic table”?
* Ismail-Beigi, Walker, Disa, Rabe, and Ahn, “Picoscale materials engineering,” Nature Reviews Materials 2, 17060 (2017).
Bio: Sohrab Ismail-Beigi received his undergraduate degree in Physics from Harvard. He obtained a Ph.D. in Physics from MIT in 2000. After a postdoctoral fellowship and U.C. Berkeley and Lawrence Berkeley National Laboratory, he moved to Yale on 2003 where he is now a Professor of Applied Physics, Physics, and Mechanical Engineering and Materials Science. His materials research interests include 1D and 2D materials as well as complex oxide surfaces and interfaces including their electronic, magnetic, structural, and chemical properties. His recent method development interests focus on electronic structure methods for excited states as well as inclusion of localized electronic correlations via slave-boson approaches.
Target Audience: Not Available
Sponsored By: Materials Science and Engineering Department
No Pamphlet/Flyer Available