Observation of stochastic resonance in percolative Josephson media
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...
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| Published in: | Физика низких температур |
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| Date: | 2002 |
| Main Authors: | , , |
| Format: | Article |
| Language: | English |
| Published: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2002
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| Subjects: | |
| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/130214 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Observation of stochastic resonance in percolative Josephson media / A.M. Glukhov, A.G. Sivakov, A.V. Ustinov // Физика низких температур. — 2002. — Т. 28, № 6. — С. 543-547. — Бібліогр.: 8 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Summary: | 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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| ISSN: | 0132-6414 |