Low field AC susceptibility study of YBCO prepared by top seeded melt growth

Güçlü N., Yeşilkanat C., Ağıl H., Doğan F., GENÇER A., Kölemen U.

Journal of Superconductivity and Novel Magnetism, cilt.24, sa.1-2, ss.261-264, 2011 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 24 Sayı: 1-2
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1007/s10948-010-1010-7
  • Dergi Adı: Journal of Superconductivity and Novel Magnetism
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.261-264
  • Anahtar Kelimeler: AC losses, AC susceptibility, Bean model, YBCO
  • Ankara Üniversitesi Adresli: Evet

Özet

Superconducting bulk YBa 2 Cu 3 O 7-x (YBCO) material prepared by the melt growth method was characterized by AC susceptibility measurements. The measured susceptibilities were affected by the ac field amplitudes. The measured fundamental susceptibility was compared with the Bean model. An empirical function for the penetration field H p = H α (1 - t) β , where t is the reduced temperature, was obtained. Ac losses were determined at fixed temperatures and compared with theoretical calculations. A qualitative agreement was found between the experimental results and theoretical calculations. © Springer Science+Business Media, LLC 2010.