Dresden 2020 – scientific programme
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MA: Fachverband Magnetismus
MA 33: Correlation Theory I
MA 33.4: Talk
Wednesday, March 18, 2020, 10:15–10:30, HSZ 403
Electronic, Magnetic and Topological Properties of Ca1K1Fe4As4 — •Niclas Heinsdorf1, Dominik Lessnisch1, Mikel Iraola Iñurrieta2, Steve Winter1, Vladislav Borisov1,3, and Roser Valentí1 — 1Institut für theoretische Physik, Goethe Universität, Frankfurt — 2Donostia International Physics Center, Donostia/San Sebastian — 3Department of Physics and Astronomy, University of Uppsala
The 1144 family of Fe-based superconductors, such as Ca1K1Fe4As4, respresents one of the most recent additions to high-Tc superconductors. This family shows a very rich phase diagram as a function of doping and pressure, including superconductivity, spin-vortex magnetism and collapsed tetragonal states. In this talk we will discuss the magnetism and topological properties of Ca1K1Fe4As4 through a combination of DFT, analysis of Elementary Band Representations and effective model calculations.