Observation of the Meissner effect in the high-Tc (pressure-)phase of the organic superconductor β-(BEDT-TTF)2I3

Veith, HelmutHeidmann, Claus PeterGross, FriederLerf, AntonAndres, KlausSchweitzer, Dieter2011-07-202016-03-312011-07-202016-03-311985351834303http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-64418http://elib.uni-stuttgart.de/handle/11682/7609http://dx.doi.org/10.18419/opus-7592It is shown that the recently found superconducting state below 6 K in β-(BEDT-TTF)2I3 under a pressure of 1.5 kbar is diamagnetic and exhibits Meissner effects of up to 24 %, indicating that superconductivity is a true volume effect in these crystals. In contrast, no traces of diamagnetism are found in iodine doped α-(BEDT-TTF)2I3, for which resistively observed superconducting transitions in the vicinity of 3 to 5 K have also been reported.eninfo:eu-repo/semantics/openAccessOrganischer Supraleiter , Tetrathiafulvalen , Meissner-Ochsenfeld-Effekt530Observation of the Meissner effect in the high-Tc (pressure-)phase of the organic superconductor β-(BEDT-TTF)2I3article