Evaluating the critical current magnitude and distribution width of tridimensional Josephson junction arrays

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:226

Article; Proceedings Paper

Passos, WAC ; de Oliveira, UR ; Ortiz, WA

关键词: Josephson junction arrays;    critical state models;    granular systems;    superconductivity;   

DOI  :  10.1016/S0304-8853(00)01174-4

来源: Elsevier

【 摘 要 】

In this contribution, we present a simple and effective procedure to determine the average critical current of a tridimensional disordered Josephson junction array (3D-DJJA). Using a contactless configuration we evaluate the average critical current and the typical width of the distribution through the analysis of the isothermal susceptibility response to the excitation field amplitude. chi (AC)(h). A 3D-DJJA fabricated from granular Nb is used to illustrate the method. (C) 2001 Elsevier Science B.V. All rights reserved.

【 授权许可】

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