• Even harmonics of AC susceptibility in some sintered pellets of high temperature superconductors

    • Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/043/03/0211-0217

    • Keywords

       

      AC Magnetic susceptibility; even harmonics; highTc superconductors; thermomagnetic hysteresis; remanent magnetization

    • Abstract

       

      The real (χ′n) and imaginary (χ″n) parts of even harmonic susceptibility (n⩽6) are measured as a function of external DC field (Hdc) in the field increasing (H↑) and decreasing (H↑) cycle. Hysteresis is observed betweenH↑ andH↓ cycles. In theH↓ cycle, at a field,Hcomp=4·2G, bothχ′ andχ″ of all the even harmonics vanish indicating a true cancellation of fields in the intergrain region (Heff≈0) caused by the balance betweenHdc and the remanent magnetization of the grains. The position of the extrema and the zero of the various harmonics undergo a shift proportional to the remanent magnetization of the grains at that particular field.

    • Author Affiliations

       

      A Das1 A Bajpai1 A Banerjee1 R Srinivasan1

      1. Inter University Consortium for DAE Facilities, University Campus, Khandwa Road, Indore - 452 001, India
    • Dates

       
  • Pramana – Journal of Physics | News

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2017-2019 Indian Academy of Sciences, Bengaluru.