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    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/027/05/0429-0432

    • Keywords

       

      MgB2; low-pressure synthesis; superconductivity.

    • Abstract

       

      MgB2 superconductor has been synthesized using a simple technique at ambient pressure. The synthesis was carried out in helium atmosphere over a wide range of temperatures. Magnesium was employed in excess to the stoichiometry to prevent the decomposition of MgB2. Samples of MgB2 thus prepared have been almost free from MgO as compared to other methods. Resistivities of the samples are quite low with residual resistivity ratio (RRR) of around 3. 𝑇c (𝑅 = 0) is 38.2–38.5 K with 𝛥𝑇c of 0.6–1.0 K. Comparative studies of various methods of low pressure synthesis have been presented.

    • Author Affiliations

       

      A Talapatra1 S K Bandyopadhyay1 Pintu Sen1 A Sarkar1 P Barat1

      1. Variable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Kolkata 700 064, India

    • Dates

       
      Published
      October 2004
      Manuscript received
      1 April 2004

  • 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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