Positive field-cooled dc susceptibility in granular superconductors interpreted through numerical simulations on a simple Josephson-junction-array model

Autor: Giancarlo Raiconi, R. De Luca, Sandro Pace, C. Auletta
Rok vydání: 1995
Předmět:
Zdroj: Physical Review B. 51:12844-12847
ISSN: 1095-3795
0163-1829
DOI: 10.1103/physrevb.51.12844
Popis: We have performed numerical simulations of a field-cooled dc susceptibility experiment carried out for granular superconductors by modeling these systems with a simple Josephson-junction array proposed by the authors. By this analysis the temperature dependence of the positive field-cooled susceptibility at very low values of the applied magnetic field, observed by Braunisch {ital et} {ital al}. [Phys. Rev. Lett. 68, 1908 (1992)] for some ceramic superonductors, has been reproduced and interpreted.
Databáze: OpenAIRE