Il Nuovo Cimento D

, Volume 16, Issue 1, pp 95–98 | Cite as

Effects of junction parameters on the resonant macroscopic quantum tunnelling in small Josephson junctions

  • P. Silvestrini
  • B. Ruggiero
  • Yu. N. Ovchinnikov
Note Brevi


Within the well-established quantum picture of a Josephson junction, it has been shown that the possibility of a resonant macroscopic quantum tunnelling can produce sharp voltage peaks in the current-voltage characteristics. We investigate the effects of the junction parametrs and bias conditions on the step amplitude, in view of an experimental check of the proposed phenomenon.

PACS 74.50

Proximity effects, tunnelling phenomena, and Josephson effects 

PACS 05.40

Fluctuation phenomena, random processes, and Brownian motion 


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  1. [1]
    A. D. Caldeira andA. J. Leggett:Phys. Rev. Lett.,46, 211 (1981). See alsoA. D. Caldeira andA. J. Leggett:Ann. Phys.,149, 374 (1983);J. M. Martinis, M. H. Devoret andJ. Clarke:Phys. Rev. B,35, 4682 (1987);K. K. Likharev andA. B. Zorin:Low Temp. Phys.,59, 347 (1985).CrossRefADSGoogle Scholar
  2. [2]
    N. Natakenaka, S. Kurihara andH. Takayanagi:Phys. Rev. B,42, 3987 (1990);Yu. N. Ovchinnikov, P. Silvestrini, B. Ruggiero andA. Barone:J. Superconductivity,5, 481 (1992).CrossRefADSGoogle Scholar
  3. [3]
    J. M. Schmidt, A. N. Cleland, andJ. Clarke:Phys. Rev. B,43, 229 (1991).CrossRefADSGoogle Scholar
  4. [4]
    A. I. Larkin, Yu. N. Ovchinnikov andA. Schmid:Physica B,152, 266 (1988).CrossRefADSGoogle Scholar
  5. [5]
    A. I. Larkin andYu. N. Ovchinnikov:Sov. Phys. JETP,64, 185 (1986).Google Scholar

Copyright information

© Società Italiana di Fisica 1994

Authors and Affiliations

  • P. Silvestrini
    • 1
  • B. Ruggiero
    • 1
  • Yu. N. Ovchinnikov
    • 1
  1. 1.Istituto di Cibernetica del Consiglio Nazionale delle RicercheArco FeliceNapoliItalia

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