Magnetic responses of a high-T-c semi-reversible YBCO superconductor

CELEBI S., OZTURK A., Cevik U.

JOURNAL OF ALLOYS AND COMPOUNDS, cilt.288, ss.249-254, 1999 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 288
  • Basım Tarihi: 1999
  • Doi Numarası: 10.1016/s0925-8388(99)00115-2
  • Dergi Adı: JOURNAL OF ALLOYS AND COMPOUNDS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.249-254
  • Anahtar Kelimeler: a.c. susceptibility, critical current density, critical state model, high-T-c superconductor, YBCO, HIGH-TEMPERATURE SUPERCONDUCTORS, II SUPERCONDUCTORS, AC SUSCEPTIBILITY, SURFACE BARRIERS, LOSSES, IRREVERSIBILITY, MODEL
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

We report the magnetic responses of a YBCO superconducting sample prepared by solid-state reaction method, in terms of d.c. magnetization, and a.c. susceptibility. Hysteresis loops have been analyzed in the framework of critical state model including the Meissner current. The critical current as a function of temperature and the volume fraction of the grains have been estimated from the a.c. susceptibility data. The zero resistance temperature and diamagnetic onset temperature were found to be 90 and 91.5 K respectively. (C) 1999 Elsevier Science S.A. All rights reserved.