Dresden 2011 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 36: SC: Fe-based Superconductors - 122 - Properties, Electronic Structure, Mechanisms

TT 36.7: Talk

Wednesday, March 16, 2011, 15:45–16:00, HSZ 304

High Pressure investigation of pressure-induced superconductivity in CaFe₂As₂ — •Patrick Reuvekamp¹, Reinhard Kremer¹, Renato Gonnelli², and Janusz Karpinski³ — ¹Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany — ²Dipartimento di Fisica and CNISM, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino (TO), Italy — ³ETH Zurich, Rämistrasse 101, 8092 Zurich, Switzerland

Since the discovery of superconductivity in iron pnictides, many compounds in this family have been heavily studied due the easily induced superconductivity using chemical doping. In the case of CaFe₂As₂, high pressure can be used to establish and tune superconductivity instead. In this investigation, the phase diagram and the pressure induced onset/disappearance of superconductivity were studied using ac-resistive measurements in magnetic fields up to 11 T.