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ac-to-dc conversion and Aharonov-Bohm effect in percolating superconducting films

Journal Article · · Physical Review Letters; (USA)
;  [1]
  1. School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv, Tel Aviv 69978, Israel (IL)
Low-frequency ac currents have been observed to induce a dc voltage {ital V}{sub dc} across macroscopic percolating films of lead and aluminum in the vicinity of their superconducting transition. This conversion is observed down to a frequency of 10 Hz, which rules out an inverse-Josephson-effect interpretation. {ital V}{sub dc} shows sharp oscillations as a function of a magnetic field. This pattern dependence on the angle between the sample and the applied field identifies these oscillations as an Aharonov-Bohm effect.
OSTI ID:
6838084
Journal Information:
Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 64:13; ISSN PRLTA; ISSN 0031-9007
Country of Publication:
United States
Language:
English