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Volumn 55, Issue 17, 1997, Pages 11670-11687

Multichannel dc Josephson effect in ballistic point contacts

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EID: 0642335840     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.55.11670     Document Type: Article
Times cited : (11)

References (42)
  • 13
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    • Mesoscopic Phenomena in Solids, edited by B.L. Al'tshuler, P.A. Lee, and R.A. Webb (North-Holland, Amsterdam, 1991), and references therein.
    • (1991) Mesoscopic Phenomena in Solids
  • 15
    • 0027607563 scopus 로고
    • C.J. Muller, J.M. van Ruitenbeek, C.W.J. Beenakker and R. de Bruyn Ouboter, Physica B 189, 225 (1993). Compare however also Koops et. al (Ref. 43) and J.M. van Ruitenbeek, in Quantum Dynamics of Submicron Structures, edited by L.P. Kouwenhoven, G. Schön, and L.L. Sohn, Proceedings of the NATO Advanced Study Institute, Curacao, 1996, Series E (Kluwer, Dordrecht, in press).
    • (1993) Physica B , vol.189 , pp. 225
    • Muller, C.1    van Ruitenbeek, J.2    Beenakker, C.3    de Bruyn Ouboter, R.4
  • 19
    • 0005378501 scopus 로고
    • L.-F. Chang and P.F. Bagwell, Phys. Rev. B 49, 15 853 (1994).
    • (1994) Phys. Rev. B , vol.49 , pp. 15853
    • Bagwell, P.1
  • 25
    • 0141564282 scopus 로고
    • The effective junction length (Formula presented) for the steplike pair potential deviates somewhat from the "real" junction length 2a for a more realistic pair potential. For a discussion of this issue see, e.g., H. Plehn, U. Gunsenheimer and R. Kümmel, J. Low. Temp. Phys. 83, 71 (1991).
    • (1991) J. Low. Temp. Phys. , vol.83 , pp. 71
    • Plehn, H.1    Gunsenheimer, U.2    Kümmel, R.3
  • 28
    • 0006778484 scopus 로고
    • it turns out that they may be neglected for short junctions
    • Proximity effects have been discussed recently in this context by A. Yeyati, A. Martín-Rodero and F.J. García-Vidal, Phys. Rev. B 51, 3743 (1995); it turns out that they may be neglected for short junctions.
    • (1995) Phys. Rev. B , vol.51 , pp. 3743
    • Yeyati, A.1    Martín-Rodero, A.2    García-Vidal, F.3
  • 35
  • 37
    • 0000757735 scopus 로고
    • A more general expression for arbitrary transmission probability and (Formula presented)=(Formula presented) is presented in P.F. Bagwell, Phys. Rev. B 46, 12 573 (1992) for the single-channel case, and the corresponding "classical limit" is found in W. Haberkorn, H. Knauer and J. Richter, Phys. Status Solidi A 47, K161 (1978).
    • (1992) Phys. Rev. B , vol.46 , pp. 12573
  • 38
    • 0000488519 scopus 로고
    • they derived the current-phase relation in the "classical limit" with a junction diameter large enough so that (Formula presented)/N≪(Formula presented) (see also, Ref. 47)
    • I.O. Kulik and A.N. Omel'yanchuk, Fiz. Nizk. Temp. 3, 945 (1977) [Sov. J. Low Temp. Phys. 3, 459 (1977)]; they derived the current-phase relation in the "classical limit" with a junction diameter large enough so that (Formula presented)/N≪(Formula presented) (see also, Ref. 47).
    • (1977) Fiz. Nizk. Temp. , vol.3 , pp. 945
    • Kulik, I.1    Omel'yanchuk, A.2
  • 40
    • 0026817702 scopus 로고
    • mechanically controllable break junctions, which are indeed atomic-size quantum point contacts, were developed first by C.J. Muller, J.M. van Ruitenbeek and L.J. de Jongh, Physica C 191, 485 (1992).
    • (1992) Physica C , vol.191 , pp. 485
    • Muller, J.1    van Ruitenbeek, J.2    de Jongh, L.3
  • 42
    • 0005449591 scopus 로고
    • Already Kulik and Omel'yanchuk presented current-phase relations for dirty and clean superconducting point contacts which are nonsinusoidal and yield π/2<(Formula presented)<π, see Ref. 42 and Pis'ma Zh. Eksp. Teor. Fiz. 21, 216 (1975) [JETP Lett. 21, 96 (1975)].
    • (1975) see Ref. 42 and Pis'ma Zh. Eksp. Teor. Fiz. , vol.21 , pp. 216


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