3:45–4:45 pm
GCIS W301 929 E. 57th Street
Abstract
In the interest of fostering discussions and hopefully collaborations, my plan in this talk will be to give a broad overview of activities in the Emerging Materials group at Argonne’s Materials Science Division. As a physics-driven materials synthesis program, we cover a lot of ground with an emphasis on quantum materials, those materials that gain their unusual behaviors from emergent phenomena at the atomic and nanoscale regime. Our interests lie primarily in correlated electron oxides, quantum magnets, and topological matter. I will present some highlights of work in each of these areas: nickelates on the verge of superconductivity, exchange frustration in a new class of ‘Cairo lattice’ magnets, and the emergence of the topological Hall effect in a colinear antiferromagnet. If time permits, I will share our use of quantum oscillations measurements to map the Fermi surface of the Kagome lattice metal CsV3Sb5, an exciting material that has resisted the usual ARPES probes thus far. Throughout, the presentation will be high level, with the hope that comments and discussions will lead to some deeper probing of the materials chemistry and physics of this wide range of compounds.