Parts | Days | Selection | Search | Updates | Downloads | Help
TT: Fachverband Tiefe Temperaturen
TT 10: Poster Session: Superconductivity
TT 10.25: Poster
Monday, March 14, 2011, 14:00–18:00, P4
Electronic Transport Properties of LiFeAs and Co doped LiFeAs — •Anne Bachmann, Dirk Bombor, Saicharan Aswaratham, Luminita Harnagea, Sabine Wurmehl, Christian Hess, and Bernd Büchner — Leibnitz Institute for Solid State and Materials Research, IFW Dresden, Germany
Electronic transport properties of the new unconventional superconductor LiFeAs and Co doped LiFeAs have been studied. Unlike in other iron arsenide superconductors this undoped compound exhibits no spin density wave but superconducting properties. Resistivity measurements show this transition at T=17 K. We have studied the magnetoresistance of LiFeAs and extracted the Hc2(T) phase diagram. In contrast to other Fe-As based compounds we find that in LiFe1−xCoxAs electron doping suppresses superconductivity.