Наукова електронна бібліотека
періодичних видань НАН України
періодичних видань НАН України
Observation of stochastic resonance in percolative Josephson media
Репозиторій DSpace/Manakin
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Observation of stochastic resonance in percolative Josephson media
Тема:
Свеpхпpоводимость, в том числе высокотемпеpатуpная
Інший ID:
PACS: 74.40.+k, 74.80.Bj, 64.40.Ak
Посилання:
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.
Підтримка:
This work was supported by the German-Ukrainian
collaboration grant of the Bundesministerium
fur Bildung, Wissenschaft, Forschung und Technologie
(BMBF) No UKR-003-99.
Дата:
2002
Переглядів:
675
Завантажень:
374
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.
