Crystal structure and magnetic properties of the new intermetallic Ce2Pt9Al16статья
Статья опубликована в высокорейтинговом журнале
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Аннотация:The crystal structure of the ternary intermetallic Ce2Pt9Al16 has been determined from single crystal Xray data. It crystallizes in a new structure type in the orthorhombic system, with cell parameters a = 4.1597(9), b = 11.910(3), c = 18.186(4) angstrom, space group Immm, Z = 2, Pearson code oI54. Cerium atom has a hexagonal prismatic coordination, tetragonal prisms are typical for coordination environment of platinum and aluminium atoms. The structure is described as a stacking of Ce-filled hexagonal prisms and two types of empty tetragonal prisms. Magnetic susceptibility measurements reveal antiferromagnetic ordering below T-N = 3 K. (C) 2009 Elsevier Ltd. All rights reserved.