Home News Short News IHK awards Max Planck instructors with the Golden Badge of Honour Publications of Felix Ahn All genres Journal Article (1) Journal Article (1) 1. Journal Article Lochner, F.; Ahn, F.; Hickel, T.; Eremin, I.: Electronic properties, low-energy Hamiltonian, and superconducting instabilities in CaKFe4As4. Physical Review B 96 (9), 094521 (2017) MPG.PuRe DOI