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Volumn 85, Issue 25, 2000, Pages 5404-5407

Universal distribution of transparencies in highly conductive Nb/AlOx/Nb junctions

Author keywords

[No Author keywords available]

Indexed keywords

ALUMINA; CRITICAL CURRENT DENSITY (SUPERCONDUCTIVITY); CURRENT VOLTAGE CHARACTERISTICS; ELECTRONIC DENSITY OF STATES; MAGNETIC FIELDS; NIOBIUM; SUPERCONDUCTING MATERIALS; SUPERCONDUCTIVITY; TRANSPARENCY;

EID: 18544410907     PISSN: 00319007     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevLett.85.5404     Document Type: Article
Times cited : (69)

References (32)
  • 9
    • 0005320082 scopus 로고    scopus 로고
    • K. M. Schep and G. E. W. Bauer, Phys. Rev. Lett. 78, 3015 (1997); Phys. Rev. B 56, 15860 (1997).
    • (1997) Phys. Rev. B , vol.56 , pp. 15860
  • 10
    • 0342387628 scopus 로고    scopus 로고
    • note
    • The distribution (2) was derived [10] for the first time for a system that is physically very much different from disordered interface: long ballistic double-barrier structure with symmetric uniform tunnel barriers. The reasons for coincidence between the two systems are not completely clear.
  • 21
    • 0343692877 scopus 로고    scopus 로고
    • A similar calculation for the double-barrier junctions was performed by A. Brinkman and A. A. Golubov, Phys. Rev. B 61, 11 297 (2000).
    • (2000) Phys. Rev. B , vol.61 , pp. 11297
    • Golubov, A.A.1
  • 22
    • 0343257133 scopus 로고    scopus 로고
    • note
    • c where the junction dc I-V curves are almost linear while the junction electrodes are still superconducting. This procedure may easily give a few percent error.
  • 24
    • 0342822417 scopus 로고    scopus 로고
    • note
    • The two latter curves may be readily calculated from the current-phase relation for a single channel [24,25] by its averaging with the respective weight (1),(2) and then maximizing the current over the Josephson phase difference.
  • 28
    • 0343692873 scopus 로고    scopus 로고
    • note
    • 3, indicating that the aluminum oxide structure is highly disordered.
  • 29
    • 0343257130 scopus 로고    scopus 로고
    • note
    • Results of previous experiments with large-area, multimode Josephson junctions in the MAR regime could be interpreted as evidence of either a small number of high-transparency pinholes [29] or percolation paths through localized states [30]. In both cases, the samples were much less uniform than our junctions, so that apparently such explanations were adequate.
  • 32
    • 0004210024 scopus 로고    scopus 로고
    • H. Weinstock Kluwer, Dordrecht, The Netherlands
    • K. K. Likharev, in Applications of Superconductivity, edited by H. Weinstock (Kluwer, Dordrecht, The Netherlands, 2000), p. 247.
    • (2000) Applications of Superconductivity , pp. 247
    • Likharev, K.K.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.