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MSE Seminar: “Topological Quantum Phases, Novel Superconductors, and Ultra-Thin Films Beyond Graphene”
December 9, 2021 at 12:30 PM - 1:30 PM
Dr. Bansil will discuss some of his recent work aimed at understanding the electronic structure and spectroscopy of novel superconductors, topological materials, and atomically thin 2D films and battery materials. [1-5] Illustrative examples will include: (i) How by exploiting electronic structure techniques we have been able to successfully predict and understand the characteristics of many new classes of topologically interesting materials, including magnetic topological materials; (ii) How atomically thin beyond graphene 2D and layered materials offer exciting new possibilities for manipulating electronic structures and provide novel platforms for fundamental science studies and applications; And, (iii) with regard to the high-Tc’s, he will discuss recent breakthroughs in modeling the insulating pristine compounds and their transition from the insulating to the metallic state with doping without invoking free parameters such as the Hubbard U parameter. A first-principles description of the competing stripe and magnetic phases in the cuprates also then becomes possible, providing a new pathway for modeling correlated materials more generally.
[1] A. Gao, et al., Nature 595, 521 (2021).
[2] H. Hafiz, et al., Nature 594, 213 (2021).
[3] Y. Zhang et al., Proceedings of the National Academy of Sciences 117, 68 (2020).
[4] D. J. Trainer et al., ACS Nano 14, 2718 (2020).
[5] A. Bansil, H. Lin and T. Das, Reviews of Modern Physics 88, 021004 (2016).
Arun Bansil
University Distinguished Professor of Physics, Northeastern University
Bansil is a University Distinguished Professor of physics at Northeastern University (NU). He served for over two years at the US Department of Energy managing the flagship Theoretical Condensed Matter Physics program (2008-10). He is a Fellow of the American Physical Society, Founding Director of NU’s Quantum Materials Institute (2021-), an academic editor of the international Journal of Physics and Chemistry of Solids (1994-), the Founding Director of NU’s Advanced Scientific Computation Center (1999-), and serves on various international editorial boards and commissions. He has authored/co-authored over 400 technical articles and edited 17 volumes of conference proceedings covering a wide range of topics in condensed matter and materials physics, and a major book on X-Ray Compton Scattering (Oxford University Press, Oxford, 2004). Bansil is a Highly Cited Researcher (ISI Web of Science/Clarivate Analytics: 2017-2021, all years).