• Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/037/01/0047-0051

    • Keywords

       

      Magnetic polaron; variable range conduction; thermal measurement.

    • Abstract

       

      Electrical and thermal properties of Bi-doped Pr0.7Sr0.3MnO3 (PSMO) compounds are reported here. It is observed that Bi-doped PSMO compounds follow variable range conduction mechanism. Specific heat, thermal conductivity and thermo-power measurements show that larger Bi-ion, in place of smaller Pr ion, enhances their transition temperatures (𝑇MI, 𝑇C, 𝑇CP). Thermo-power measurements further strengthen our conclusion for the presence of magnetic polaron, generated due to hybridization of Bi3+–6s2 and O2-–2𝑝 orbital and polaronic conduction mechanism.

    • Author Affiliations

       

      Mamatha D Daivajna1 Neeraj Kumar1 2 Bhasker Gahtori1 3 V P S Awana1 3 Y K Kuo1 3 Ashok Rao1 4

      1. Department of Physics, Manipal Institute of Technology, Manipal University, Manipal 576 104, India
      2. Department of Physics, University of Trento, Trento, Italy
      3. Superconductivity and Cryogenics Division, National Physical Laboratory (CSIR), Dr K S Krishnan Marg, New Delhi 110 012, India
      4. Department of Physics, National Dong-Hwa University, Hualien 974, Taiwan
    • Dates

       
  • 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

© 2021-2022 Indian Academy of Sciences, Bengaluru.