title: AlPd15B7: a new superconducting cage-compound with an anti-Yb3Rh4Sn13-type of structure.
abstract: A new intermetallic compound AlPd15B7 was synthesized by arc-melting the stoichiometric mixture of the elements. Single crystal X-ray diffraction data of ternary metal-rich boride reveal a new type of structure with the space group Ia3d and the lattice parameter a = 16.4466(3) Å. It adopts a filled anti-Yb3Rh4Sn13-type structure, where the positions corresponding to 3Yb, 4Rh and 13Sn atoms are occupied by 3Pd, 4B, and 1Al + 12 Pd, respectively and 3B additionally at interstitial sites. Magnetic susceptibility, electrical resistivity, and specific heat measurements reveal bulk superconductivity with a critical temperature Tc ≈ 2.9 K. Electronic structure calculations show that Pd 4d and B 2p states dominate the density of states (DOS) at the Fermi level EF.
authors.affiliation: Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Str. 40, 01187 Dresden, Germany. roman.gumeniuk@physik.tu-freiberg.de.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Zheng
authors.affiliation: Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Str. 40, 01187 Dresden, Germany. roman.gumeniuk@physik.tu-freiberg.de.
authors.forename: Walter
authors.initials: W
authors.lastname: Schnelle
authors.affiliation: Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Str. 40, 01187 Dresden, Germany. roman.gumeniuk@physik.tu-freiberg.de.
authors.forename: Yurii
authors.initials: Y
authors.lastname: Prots
authors.affiliation: Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Str. 40, 01187 Dresden, Germany. roman.gumeniuk@physik.tu-freiberg.de.
authors.forename: Matej
authors.initials: M
authors.lastname: Bobnar
authors.affiliation: Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Str. 40, 01187 Dresden, Germany. roman.gumeniuk@physik.tu-freiberg.de.
authors.forename: Ulrich
authors.initials: U
authors.lastname: Burkhardt
authors.affiliation: Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Str. 40, 01187 Dresden, Germany. roman.gumeniuk@physik.tu-freiberg.de.
authors.forename: Andreas
authors.initials: A
authors.lastname: Leithe-Jasper
authors.affiliation: Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Str. 40, 01187 Dresden, Germany. roman.gumeniuk@physik.tu-freiberg.de and Institut für Experimentelle Physik, TU Bergakademie Freiberg, Leipziger Str. 23, 09596 Freiberg, Germany.
authors.forename: Roman
authors.initials: R
authors.lastname: Gumeniuk