Josephson mechanism in random telegraph voltage noise in high-TC superconductors

G. Jung, B. Savo

Research output: Contribution to journalConference articlepeer-review

Abstract

Random telegraph voltage noise signals characterized by strongly nonlinear and nonmonotonic dependence of the telegraph amplitude on current flow has been observed in good quality epitaxial BiSrCaCuO thin film strips biased with d.c. current flow and immersed in an external magnetic field. The shape of the amplitude dependence on current flow closely resembled that observed previously in granular films, where intergranular Josephson junctions were involved in noise generation. The dependence of noise amplitude on bias current and magnetic field in epitaxial films is discussed in the context of the possible Josephson flux-to-voltage conversion mechanism.

Original languageEnglish
Pages (from-to)391-397
Number of pages7
JournalApplied Superconductivity
Volume6
Issue number7-9
DOIs
StatePublished - 1 Jan 1998
EventProceedings of the 1998 5th International Conference on Applications of Advanced Technologies in Transportation - Newport Beach, CA, USA
Duration: 26 Apr 199829 Apr 1998

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