# Field and current distributions and ac losses in superconducting strips

Title | Field and current distributions and ac losses in superconducting strips |

Publication Type | Journal Article |

Year of Publication | 2009 |

Authors | Clem JR |

Journal Title | Physical Review B |

Volume | 80 |

Pages | 184517 |

Date Published | 11/01 |

ISBN Number | 1098-0121 |

Accession Number | ISI:000272310900105 |

Keywords | conductors, critical current density (superconductivity), eddy current losses, films, magnetic flux, superconducting thin films, TRANSPORT CURRENTS, type ii superconductors |

Abstract | In this paper I discuss analytic and numerical calculations of the magnetic-field and sheet-current distributions in superconducting strips of width 2a and arbitrary thickness 2b at the center when the cross-section is an ellipse, a rectangle, and a shape intermediate between these limits. Using critical-state theory, I use several methods to determine the functional dependence of the ac transport-current losses upon F=I/I-c, where I is the peak alternating current and I-c is the critical current, and I discuss how this dependence can be affected by the cross-sectional shape, aspect ratio, and a flux-density-dependent critical current density J(c)(B). |

URL | <Go to ISI>://000272310900105 |

DOI | 10.1103/Physrevb.80.184517 |