OBSERVATION OF JOSEPHSON SELF-COUPLING IN NB/ALOX/NB TUNNEL-JUNCTIONS

被引：11
|
作者：
MAEZAWA, M
AOYAGI, M
NAKAGAWA, H
KUROSAWA, I
TAKADA, S
机构：
[1] Electrotechnical Laboratory, Tsukuba, Ibaraki 305
来源：
PHYSICAL REVIEW B | 1994年 / 50卷 / 13期
关键词：
D O I：
10.1103/PhysRevB.50.9664
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present the observation of Josephson self-coupling in Nb/AlO(x)/Nb tunnel junctions. In current-voltage characteristics, anomalous subharmonic gap structures were observed; steep current steps and peaks which were sensitive to the magnetic field appeared at the voltages of 2DELTA/3e and 2DELTA/5e. The characteristics of these structures could not be explained by multiparticle tunneling and/or multiple Andreev reflection. We conclude that the structures at 2DELTA/3e and 2DELTA/5e are due to Josephson self-coupling.
引用
收藏
页码：9664 / 9667
页数：4
相关论文
共 50 条
  • [21] ELECTRICAL CHARACTERIZATION OF NB NB OXIDE PBAUIN JOSEPHSON TUNNEL-JUNCTIONS
    GALLAGHER, WJ
    RAIDER, SI
    DRAKE, RE
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 1983, 19 (03) : 807 - 810
  • [22] Nb/AlOx/Nb Josephson tunnel junctions using electron beam evaporation
    Inoue, Atsuki
    Nakayama, Akiyoshi
    Okabe, Yoichi
    [J]. Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 1988, 27 (07): : 1234 - 1239
  • [23] Stacked Nb/Al-AlOx/Nb long Josephson tunnel junctions
    [J]. Kohlstedt, H., 1711, Publ by Elsevier Science Publishers B.V., Amsterdam, Netherlands (194-96):
  • [24] STUDY OF NB-BASED JOSEPHSON TUNNEL-JUNCTIONS
    MATSUDA, A
    INAMURA, T
    YOSHIKIYO, H
    [J]. JOURNAL OF APPLIED PHYSICS, 1980, 51 (08) : 4310 - 4316
  • [25] NB/AL/ALOX/NB SUPERCONDUCTING TUNNEL-JUNCTIONS AS X-RAY-DETECTORS
    ZACHER, RA
    SAULNIER, G
    FRITZ, GG
    VANVECHTEN, D
    KANG, J
    [J]. JOURNAL OF LOW TEMPERATURE PHYSICS, 1993, 93 (3-4) : 581 - 586
  • [26] INVESTIGATION OF SUBGAP STRUCTURES IN HIGH-QUALITY NB/ALOX/NB TUNNEL-JUNCTIONS
    CRISTIANO, R
    FRUNZIO, L
    MONACO, R
    NAPPI, C
    PAGANO, S
    [J]. PHYSICAL REVIEW B, 1994, 49 (01): : 429 - 440
  • [27] ANNEALING PROPERTIES OF HIGH-QUALITY NB/AL ALOX/NB TUNNEL-JUNCTIONS
    OLIVA, A
    MONACO, R
    [J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 1994, 4 (01) : 25 - 32
  • [28] NB-NB OXIDE-PB-ALLOY JOSEPHSON TUNNEL-JUNCTIONS
    RAIDER, SI
    DRAKE, RE
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 1981, 17 (01) : 299 - 302
  • [29] ION-IMPLANTATION INTO NB/NB OXIDE/PBAUIN JOSEPHSON TUNNEL-JUNCTIONS
    RAIDER, SI
    CLARK, GJ
    [J]. APPLIED PHYSICS LETTERS, 1984, 45 (07) : 796 - 798
  • [30] FABRICATION OF NB/AL,ALOX/AL/NB JOSEPHSON TUNNEL-JUNCTIONS USING REACTIVE ION ETCHING IN SF6
    ADELERHOF, DJ
    BIJLSMA, ME
    FRANSEN, PBM
    WEIMAN, T
    FLOKSTRA, J
    ROGALLA, H
    [J]. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1993, 209 (04): : 477 - 485
12345