title: kappa-(BEDT-TTF)2Cu[N(CN)(2)]Br: a fully gapped strong-coupling superconductor.
abstract: High-resolution specific-heat measurements of the organic superconductor kappa-(BEDT-TTF)(2)-Cu[N(CN)(2)]Br in the superconducting ( B = 0) and normal ( B = 14 T) states show a clearly resolvable anomaly at T(c) = 11.5 K and an electronic contribution, C(es), which can be reasonably well described by strong-coupling BCS theory. Most importantly, C(es) vanishes exponentially in the superconducting state which gives evidence for a fully gapped order parameter.
authors.affiliation: Physikalisches Institut, Universität Karlsruhe, 76128 Karlsruhe, Germany.
authors.forename: H
authors.initials: H
authors.lastname: Elsinger
authors.forename: J
authors.initials: J
authors.lastname: Wosnitza
authors.forename: S
authors.initials: S
authors.lastname: Wanka
authors.forename: J
authors.initials: J
authors.lastname: Hagel
authors.forename: D
authors.initials: D
authors.lastname: Schweitzer
authors.forename: W
authors.initials: W
authors.lastname: Strunz