Izvorni znanstveni članak
Superconductivity in Bi 2223 compound: physics and potential applications
Emil Babić
; Department of Physics, Faculty of Science, The University of Zagreb, POBox 162, 10001 Zagreb, Croatia
Ivica Kušević
; Department of Physics, Faculty of Science, The University of Zagreb, POBox 162, 10001 Zagreb, Croatia
Krešo Zadro
; Department of Physics, Faculty of Science, The University of Zagreb, POBox 162, 10001 Zagreb, Croatia
Jovica Ivkov
; Institute of Physics of the University, POBox 304, 10001 Zagreb, Croatia
Željko Marohnić
; Institute of Physics of the University, POBox 304, 10001 Zagreb, Croatia
Đuro Drobac
; Institute of Physics of the University, POBox 304, 10001 Zagreb, Croatia
Mladen Prester
; Institute of Physics of the University, POBox 304, 10001 Zagreb, Croatia
Hua Kun Liu
; Centre for Superconducting and Electronic Materials, University of Wollongong, Wollongong, NSW 2522, Australia
Shi Xue Dou
; Centre for Superconducting and Electronic Materials, University of Wollongong, Wollongong, NSW 2522, Australia
Dragana Todorović-Marinić
; CIRM-Energoinvest, Sarajevo, Bosnia and Hercegovina
Ahmed Kuršumović
; CIRM-Energoinvest, Sarajevo, Bosnia and Hercegovina
Sažetak
The main results of the systematic study of the electron transport properties and AC susceptibility in Pb-doped, almost single phase, Bi 2223 ceramic samples and Ag-clad Bi 2223 tape, are presented. Whereas the results for the ceramic samples can only be used for the study of the percolation problem in the weak-link network, those for tape can yield some intrinsic parameters of Bi 2223 compound (the upper critical fields BC2, the coherence lengths, etc.). In addition, the results for the tape provide some technologically relevant parameters (the pinning potential U0, volume pinning force Fp and the flux-flow viscosity h) and an insight into the nature of dissipation and pinning in these materials. Some factors limiting the critical current density Jc in the present-day tapes are briefly discussed.
Ključne riječi
Hrčak ID:
299564
URI
Datum izdavanja:
1.9.1995.
Posjeta: 181 *