Flux pinning due to stress concentration introduced by an ellipsoidal precipitate in a stressed YBa2Cu3O7 film

https://doi.org/10.1016/0921-4534(94)90781-1Get rights and content

Abstract

The pinning potential of an ellipsoidal inclusion in an YBa2Cu3O7 (YBCO) film, deposited on a substrate, in the presence of film stress, has been estimated. The stress fields at the tip of the inclusion are computed with the assumption that the YBCO film is elastically orthotropic. The volumetric interaction energy of a flux line situated at the tip of the ellipsoid is calculated numerically for various shapes of the ellipsoid using the change in the anisotropic compliance tensor ΔSij between the superconducting and the normal states for a c-oriented YBCO film.

References (26)

  • T.I. Selinder et al.

    Physica C

    (1992)
  • M. Murakami et al.

    Cryogenics

    (1992)
  • M. Mironova et al.

    Physica C

    (1993)
  • G.N. Mirenkova et al.

    J. Appl. Math. Mech.

    (1992)
  • E.P. Kvam

    Physica C

    (1992)
  • T.I. Selinder et al.

    Thin Solid Films

    (1993)
  • J. Vargas et al.

    Appl. Phys. Lett.

    (1992)
  • C. Gerber et al.

    Nature

    (1991)
  • S. Jin et al.

    Appl. Phys. Lett.

    (1991)
  • A. Catana et al.

    Appl. Phys. Lett.

    (1992)
  • P. Lu et al.

    Appl. Phys. Lett.

    (1992)
  • P.H. Kes et al.
  • M. Murakami et al.

    Supercond. Sci. Technol.

    (1991)

    • Cited by (1)

    • Evidence for the lattice-mismatch-stress-field induced flux pinning in (Gd<inf>1-x</inf>Y<inf>x</inf>)Ba<inf>2</inf>Cu<inf>3</inf>O<inf>7-δ</inf> thin films

      1996, Physica C: Superconductivity and its Applications
    View full text
    Copyright © 1994 Published by Elsevier B.V.