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Inorg Chem. 2009 Jun 15;48(12):5216-23. doi: 10.1021/ic900171u.

Neutron diffraction, electronic band structure, and electrical resistivity of Mo(3-x)Ru(x)Sb(7).

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  • 1Institut Jean Lamour, UMR 7198, Ecole Nationale SupĂ©rieure des Mines de Nancy, Parc de Saurupt, 54042 Nancy cedex, France.


Neutron diffraction experiments and Korringa-Kohn-Rostoker with coherent potential approximation electronic band structure calculations as well as electrical resistivity measurements have been performed on polycrystalline Mo(3-x)Ru(x)Sb(7) samples for 0 < or = x < or = 1. Neutron diffraction studies have been undertaken at room temperature and extended down to 4 K to get a better understanding of the crystalline structure modifications as the Ru content increases. Both structural and chemical characterizations have unambiguously revealed a solubility limit of the Ru atoms close to 0.8. Electronic band structure calculations have provided theoretical evidence of a progressive transition from a metalliclike state (x = 0) toward a semiconducting-like character as x = 1 is approached, although the solubility limit of Ru precludes a crossover to a semiconducting behavior. The theoretical prediction has been experimentally confirmed by low-temperature electrical resistivity measurements from 2 up to 350 K.

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