Accession Number : AD0787110

Title :   Current-Phase Relations and Noise in rf Biased Squids.

Descriptive Note : Technical rept.,

Corporate Author : CORNELL UNIV ITHACA N Y MATERIALS SCIENCE CENTER

Personal Author(s) : Jackel,L. D. ; Clark,T. D. ; Buhrman,R. A.

Report Date : 01 OCT 1974

Pagination or Media Count : 6

Abstract : An investigation was made of the effect of the weak link current-phase relations on noise in rf biased SQUIDs. Non-sinusoidal current-phase relations have been observed in various weak links and these non-sinusoidal relations have been correlated with significantly increased intrinsic noise in the SQUID ring. The current-phase relation is also found to affect the amplitude of the rf SQUID ring dissipation. The result of a rf SQUID system noise analysis shows that, due to increased intrinsic noise and reduced ring dissipation, the minimum attainable noise for a SQUID ring having a very non-sinusoidal current-phase relation is considably greater than for a ring with a sinusoidal relation. (Author)

Descriptors :   *Magnetic detectors, Flux(Rate), Magnetic fields, Rings, Superconductors, Noise(Electrical and Electromagnetic), Sensitivity, Quantum electronics

Subject Categories : Electrical and Electronic Equipment
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE