High resolution DC size effect measurement of resistivity in aluminium up to 30K using RF squid and HTSC wiring

✍ Scribed by José Romero; Thomas Fleischer; Robert Huguenin

• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 242 KB
• Volume: 165-166
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/s0921-4526(90)80921-5

✦ Synopsis

An application of high temperature superconductor (HTSC) is presented in an electrical circuit in which no high density current flows. The use of HTSC as part of the wiring circuit in a high resolution bridge with a direct current comparator and a RF SQUID allowed to make hi h resolution measurements of the electrical resistivity of thin samples up to 30 K. The results exhibit a c ear difference of the T-dependence of the B resistivity for polished and rough samples