Onset temperature of the collective magnetic response of a tridimensional disordered Josephson junction array

✍ Scribed by L.C. Rodriguez-Aliaga; R. Caparroz; P.N. Lisboa-Filho; W.A.C. Passos; W.A. Ortiz

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 296 KB
• Volume: 408-410
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/j.physc.2004.03.162

✦ Synopsis

In this work, measurements of AC-susceptibility, magnetic remanence and resistivity, carried out on a superconducting sample of YBa 2 Cu 3 O 7Àd are presented. The sample was produced by a two-steps solid state reaction, a variation of the conventional method. AC-susceptibility and magnetic remanence measurements, carried out at different excitation fields, and resistivity measurements, conducted for a variety of values of current, reveal a unique temperature at which the weak-links cease to respond. Present results are consistent with those obtained for other systems.