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    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/014/03/0827-0830

    • Keywords

       

      Thermopower; linear variation; exponential enhancement; two-band model

    • Abstract

       

      Single-phase 2122 samples of thallium and bismuth superconductors were made by the precursor matrix method. The thermopower of these samples was measured in the temperature range 250 K-Tc. The thermopower was positive and decreased linearly with increasing temperature aboveTc (onset). The exponential enhancement of thermopower seen in the undoped and doped YBCO was not observed in these samples. The linear variation of thermopower can be explained on the basis of either a two-band model or a narrow band model.

    • Author Affiliations

       

      V Vijayashree1 C K Subramaniam1 R Srinivasan1 I K Gopalakrishnan1 2 PVPSS Sastry1 2 J V Yakhmi1 2 R M Iyer1 2

      1. Department of Physics, Indian Institute of Technology, Madras - 600 036, India
      2. Chemical Group, Bhabha Atomic Research Centre, Trombay, Bombay - 400 085, India

    • Dates

       
      Published
      June 1991

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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