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    • Phase transitions in molybdenum sesquisulphide systems between 80 and 600 K

      A K Rastogi R K Ray

      Volume 3 Issue 3 November 1981 pp 341-345

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/003/03/0341-0345

    • Keywords

       

      Phase transition; molybdenum sulphide; electrical properties; magnetic properties

    • Abstract

       

      Samples of Mo2S3 system and substituted derivatives with Cr, Nb, Cu and Mn have been studied. The resistivity, thermoelectric power, magnetic susceptibility and specific heat indicate clear phase transition at temperatures between 200 and 310 K. X-ray investigations establish the transitions at these temperatures as structural changes. Careful analysis of the data helps to obtain working values for a model for the energy band. Carrier density, effective mass, mobility, band overlap parameter, density of states for the electrons and holes in the overlapping bands at the Fermi level and the band gap for a higher conduction band are obtained.

    • Author Affiliations

       

      A K Rastogi1 2 R K Ray1

      1. Department of Physics, Indian Institute of Technology, Kanpur - 208 016, India
      2. CRTBT, CNRS, Grenoble, France

    • Dates

       
      Published
      November 1981
      Manuscript received
      23 February 1981

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