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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >AlPd15B7: a new superconducting cage-compound with an anti-Yb3Rh4Sn13-type of structure
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AlPd15B7: a new superconducting cage-compound with an anti-Yb3Rh4Sn13-type of structure

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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 laid and the lattice parameter a = 16.4466(3) A. It adopts a filled anti-Yb3Rh4Sn13-type structure, where the positions corresponding to 3Yb, 4Rh and 13Sn atoms are occupied by 3Pd, 4B, and lAl + 12 Pd, respectively and 3B additionally at interstitial sites. Magnetic susceptibility, electrical resistivity, and specific heat measurements reveal bulk superconductivity with a critical temperature T-c approximate to 2.9 K. Electronic structure calculations show that Pd 4d and B 2p states dominate the density of states (DOS) at the Fermi level E-F.

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