• Thermodynamic analysis of the metal-insulator transitions in V2O3 alloy systems

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    • Keywords

       

      Metal-insulator transitions; V2O3 alloys; heat capacity; phase diagram; thermodynamic analysis; entropy; enthalpy; non-stoichiometry

    • Abstract

       

      An overview is presented concerning the entropies (ΔS) and enthalpies (ΔH) associated with metal-insulator transitions in the (V1−xMx)2O3 M=Al, Cr, Ti systems, 0⩽x⩽0·12 and in non-stoichiometric V2(1 −y)O3, 0⩽y⩽0·01. The recent literature and new data are analyzed with respect to gradiations in ΔH and ΔS withx ory, and their implications concerning the mechanism of the transitions. A revised phase diagram is presented.

    • Author Affiliations

       

      J M Honig1 H V Keer1 2 G M Joshi1 S A Shivashankar1

      1. Department of Chemistry, Purdue University, West Lafayette, Indiana - 47907, USA
      2. Department of Chemistry, Indian Institute of Technology, Powai, Bombay - 400 076, India
    • Dates

       
  • Bulletin of Materials Science | News

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