Observation of stochastic resonance in percolative Josephson media

Автор(и)

  • A. M. Glukhov B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine, 47 Lenin Ave., Kharkov 61103, Ukraine
  • A. G. Sivakov B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine, 47 Lenin Ave., Kharkov 61103, Ukraine
  • A. V. Ustinov Physikalisches Institut III, Universitat Erlangen-Nürnberg Erwin-Rommel-Str. 1, D-91058 Erlangen, Germany

DOI:

https://doi.org/10.1063/1.1491176

Ключові слова:

PACS: 74.40. k, 74.80.Bj, 64.40.Ak

Анотація

Measurements of the electrical response of granular Sn-Ge thin films below the superconducting transition temperature are reported. Addition of an external noise to the magnetic field applied to the sample is found to increase the sample voltage response to a small externally applied ac signal. The gain coefficient for this signal as well as the signal-to-noise ratio displays clear maxima at particular noise levels. We interpret these observations as a stochastic resonance in the percolative Josephson media that occurs close to the percolation threshold.

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Опубліковано

2002-05-11

Як цитувати

(1)
Glukhov, A. M.; Sivakov, A. G.; Ustinov, A. V. Observation of Stochastic Resonance in Percolative Josephson Media. Fiz. Nizk. Temp. 2002, 28, 543-547.

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Надпровідність, зокрема високотемпературна

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