A bare three-dimensional model, in which grains are reduced to points, cannot fully account for the magnetic properties of granular superconductors. A dressed version of these network models is proposed to discuss the quantitative link between the low-field magnetic response of high-Tc superconducting granular samples and the characteristic properties of Josephson junction network models. By means of dressed models, the temperature dependence of the d.c. field-cooled susceptibility of a simple three-dimensional granular system, consisting of eight grains in a cubic arrangement, is studied.
Titolo: | Dressed Josephson junction network models and low-field magnetic response of high-Tc granular superconductors |
Autori: | |
Data di pubblicazione: | 2004 |
Rivista: | |
Handle: | http://hdl.handle.net/11386/1059927 |
Appare nelle tipologie: | 1.1.2 Articolo su rivista con ISSN |
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