Variable ß RF SQUID
Variable ß rf SQUIDs have been designed and fabricated by replacing the single Josephson junction (JJ) of the standard rf SQUID by a small inductance dc SQUID. The important characteristics, such as the small oscillation frequencies at the bottom of the potential well and the barrier height of the symmetric double well are in situ tunable. The potential associated with the device is derived and the techniques used to determine the parameters of the device are described.
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- 1.A.J. Leggett, S. Chakravarty, A.T. Dorsey, M.P.A. Fisher, A. Garg, and W. Zwerger, Rev. Mod. Phys. 59, 1 (1987), and references therein.Google Scholar