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      https://www.ias.ac.in/article/fulltext/pram/034/04/0325-0331

    • Keywords

       

      Solid-liquid interface; Galvani potential; Fermi energy; lead; thermopower

    • Abstract

       

      The electric potential across a melting sample of pure lead was measured as a function of time. A difference of the order of a few hundred microvolts was seen between the measured values of the potential and those calculated using the temperature gradients and the thermopowers of the solid and the liquid phases. This difference persists as long as the solid-liquid interface moves and is attributed to the Galvani potential present at the solid-liquid interface. It is suggested that such measurements can be used to obtain the value of the Fermi energy for liquids.

    • Author Affiliations

       

      A K Bhuniya N Prasad1 Lakshman Pandey2 P Ramachandrarao3

      1. Department of Metallurgical Engineering, Institute of Technology, Banaras Hindu University, Varanasi - 221 005, India
      2. Department of Physics, Rani Durgavati Vishwavidyalaya, Jabalpur - 482 001, India
      3. School of Materials Science & Technology, Institute of Technology, Banaras Hindu University, Varanasi - 221 005, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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