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    • Keywords


      Chalcogenides; chemical bonds; memory; threshold

    • Abstract


      The paper reports a structural study of some memory and threshold chalcogenides in terms of coordination numberC, defined byC=8−N, and is the average coordination number for covalently bonded materials. The average number of nearest neighbours surrounding a central atom, obtained for As-Ge-Te (memory) and Se-Ge-Te (threshold) systems have been used to estimate the cohesive energies, assuming simple additivity of bond energies. The bonding pattern so obtained, explains certain properties of these glasses.

    • Author Affiliations


      Manohar Lal1 Navdeep Goyal1 Anil Vohra1 2

      1. Department of Physics, Panjab University, Chandigarh - 160 014, India
      2. Department of Electronic Science, Kurukshetra University, Kurukshetra - 132 119, India
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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