Home News Press Releases Dr. Yan Ma receives Walter Benjamin Grant of the German Research Foundation 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