Graduate Student Seminar
December 01, 2023
12:00 p.m. ET
Scaife Hall 105
Prospecting for New Magnetic Materials
Magnetic materials are essential for energy generation and information devices. They also play an important role in advanced technologies and green energy economies. Most commercial magnets contain rare earth elements, which are considered a critical resource. An outstanding challenge of notable scientific interest is the discovery and synthesis of novel magnetic materials, which do not contain rare earth elements; yet, meet the performance and cost goals for advanced electro-magnetic devices.
I will discuss the synthesis of a heretofore unknown rare earth-free magnetic compound by integrating machine learning, an adaptive genetic algorithm, first-principles calculations, and experimental synthesis. Magnetic measurements show that this newly discovered material exhibits a high magnetic anisotropy and saturation magnetic polarization, which is suitable for permanent-magnet applications. Our machine learning-guided approach presents a promising pathway for efficient materials design and discovery, and can be applied to the search for other functional materials.
Ref. Xia, et al. PNAS 119 (47) e2204485119 (2022).
James R. Chelikowsky, W.A. “Tex” Moncrief, Jr. Chair of Computational Materials, Center for Computational Materials, Oden Institute of Computational Engineering and Sciences, Department of Physics and McKetta Department of Chemical Engineering, University of Texas at Austin
Chelikowsky received a BS from Kansas State University and a PhD from the University of California at Berkeley, both degrees in physics. Before assuming the Tex Moncrief Chair in Computational Materials at Texas in 2005, he worked at the University of Minnesota for almost 20 years. His research is focused on computational applications of quantum theory to understand, design and discover properties of materials. His work has been recognized by the David Turnbull Award from the Materials Research Society, the David Adler Award and the Aneesur Rahman Prize from the American Physical Society , the John Bardeen Award from The Minerals, Metals and Materials Society, and most recently the Feynman Prize in Theory from the Foresight Institute.
Upcoming Events
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March 13 2025
3:30 PM ET
Materials Science and Engineering
"MaterialEyes - Seeing the Invisible using Experiment, Theory and AI," presented by Maria Chan, Center for Nanoscale Materials, Argonne National Laboratory
Mehl Room - 2327 Wean
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March 14 2025
10:00 AM ET
Materials Science and Engineering
A Journey from Atoms to Materials: Computationally-Guided Discovery and Design of Functional Materials, presented by Prashun Gorai, Rensselaer Polytechnic Institute
McConomy Auditorium, First Floor Cohon University Center
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March 21 2025
10:00 AM ET
Materials Science and Engineering
Thermophysical and Thermochemical Properties of Transition Metal Diborides up to and above 3000 degrees, presented by Scott J. McCormack, University of California, Davis
McConomy Auditorium, First Floor Cohon University Center
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March 28 2025
10:00 AM ET
Materials Science and Engineering
Deciphering microscopic mechanisms driving assembly and flow of soft materials, presented by Vikram Jadhao, Indiana University, Bloomington
McConomy Auditorium, First Floor Cohon University Center
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April 11 2025
10:00 AM ET
Materials Science and Engineering
The Green Steel Revolution, presented by Sara Hornby-Anderson
McConomy Auditorium, First Floor Cohon University Center
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April 18 2025
10:00 AM ET
Materials Science and Engineering
presented by Robert Macfarlane, Massachusetts Institute of Technology
McConomy Auditorium, First Floor Cohon University Center