Hidden features in (Bi,Pb)-2223 granular superconductors

M. Hernández-Wolpez ^[1] ; E. Martínez-Guerra ^[3] ; R.F. Jardim ^[4] ; P. Muné ^[2]
1. [1] Universidad de Camagüey
  
  Universidad de Camagüey
  
  Cuba
2. [2] Universidad de Oriente - Santiago de Cuba
  
  Universidad de Oriente - Santiago de Cuba
  
  Cuba
3. [3] Centro de Investigaci´on en Materiales Avanzados S.C., Unidad Monterrey-PIIT
4. [4] Instituto de Física, Universidade de S˜ao Paulo
Mostrar afiliaciones +
Localización: Revista Mexicana de Física, ISSN-e 0035-001X, Vol. 62, Nº. 6, 2016, págs. 515-525
Idioma: inglés
Enlaces
- Texto completo
Resumen
- The aim of this review is to give a summary of some hidden features related to penetration, trapping, and relaxation of the magnetic ﬂux in (Bi,Pb)-2223 granular superconductors. The discussion is based on experimental and theoretical results obtained in samples prepared under different conditions and by different research groups. Fundamental concepts such as granularity and grain boundaries (GB), superconducting levels, types of vortices, and microstructural characteristics of (Bi,Pb)-Sr-Ca-Cu-O superconductors are invoked for supporting the discussion. As conclusions we focus on the main insufﬁciencies in the treatment and understanding of the phenomena mentioned above. We also propose some experiments for improving the understanding of the general physical features of granular superconductors.