Dimensionality crossover and magnetic field frustration in disordered proximity coupled arrays

✍ Scribed by D.C. Harris; S.T. Herbert; J.C. Garland

• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 401 KB
• Volume: 165-166
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/s0921-4526(09)80407-9

✦ Synopsis

We have fabricated site-diluted disordered arrays of proximity coupled superconducting junctions. We have measured the critical current superconducting phase boundary, leCH), as a function of disorder and found that the higher order frustrationinduced structure is significantly reduced with the introduction of as little as 10% disorder. Lower order structure, however, persists out to higher disorder than indicated by simulations. We see no evidence of a dimensionality crossover in the phase boundary for our disordered arrays, in agreement with recent data on percolating superconducting wire networks.