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    • Keywords


      CooperativeJ-T effect; metallic copper; symmetry; cation distribution

    • Abstract


      The structural study of ZnCuTiO4, ZnCuSnO4 and ZnCuGeO4 reveals that while the cooperativeJ-T effect of Sn4+ is responsible for the orthorhombic symmetry of ZnCuSnO4, the hexagonal influence of Ge4+ is more predominant in ZnCuGeO4. Ti4+ is uninfluential either in initiating the distortive tendency or cooperating with other ions for the same. The XRD,ρRT, ΔE and the nature of the charge carriers, all suggest that the air oxidation of metallic copper leads to the minority concentration of Cu+ along with a majority concentration of Cu2+, as demanded by the stoichiometric considerations of these compositions.

    • Author Affiliations


      M P Tare1 R R Tripathi1 S Sampath1 S M Tare1

      1. Department of Chemistry, Institute of Science, Nagpur - 440 001, India
    • Dates

  • Bulletin of Materials Science | News

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      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
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      Posted on July 25, 2019

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