Regensburg 2016 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 54: Electron Theory of Magnetism and Micromagnetic Simulations

MA 54.1: Hauptvortrag

Freitag, 11. März 2016, 09:30–10:00, H34

Itinerant Magnetism in the Parent Iron-Based Superconductors: hidden frustration, nematic transitions, and spin-orbit coupling — •Ilya Eremin — Institut für Theoretische Physik III, Ruhr-Universität Bochum, 44801 Bochum, Germany

The pnictides have captured the imagination of the condensed matter community mainly on account of their high Tc's exceeding 50K. However, underpinning this is an equally fascinating topic, namely their magnetic properties, which have been studied in exquisite detail for a range of compounds unusually broad for an itinerant magnet.

This talk will cover rich phase diagram as function of doping, pressure, displaying e.g. separate magnetic and nematic critical points. It showcases important topics such as the interplay of orbital, nematic and magnetic order on account of the orbital character of the Fermi pockets involved. Experimental signatures of these phenomena will be also discussed.