title: Dumbbells of five-connected Ge atoms and superconductivity in CaGe3.
abstract: CaGe(3) has been synthesized at high-pressure, high-temperature conditions. The atomic pattern comprises intricate germanium layers of condensed moleculelike dimers. Below T(c) = 6.8 K, type II superconductivity with moderately strong electron-phonon coupling is observed.
authors.affiliation: Max-Planck-Institut für Chemische Physik fester Stoffe, Dresden, Germany.
authors.forename: Walter
authors.initials: W
authors.lastname: Schnelle
authors.forename: Alim
authors.initials: A
authors.lastname: Ormeci
authors.forename: Aron
authors.initials: A
authors.lastname: Wosylus
authors.forename: Katrin
authors.initials: K
authors.lastname: Meier
authors.forename: Yuri
authors.initials: Y
authors.lastname: Grin
authors.forename: Ulrich
authors.initials: U
authors.lastname: Schwarz