MODULATION OF LOW-FREQUENCY SHAPIRO STEPS OF SUPERCONDUCTING PROXIMITY-EFFECT JUNCTIONS

被引：9
|
作者：
HEBBOUL, SE
HARRIS, DC
GARLAND, JC
机构：
[1] Department of Physics, Ohio State University, Columbus, Ohio
来源：
PHYSICA B | 1990年 / 165卷
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/S0921-4526(09)80400-6
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We observe a modulation of Shapiro step heights in superconducting Nb-Au-Nb (SNS) Josephson junctions at an rf frequency v = 20 MHz (hv/2eRIc ≈ 0.17). In addition to the expected steps at Vn = nhv/2e, n = 0,1,2,etc., we record an odd sequence of steps at an rf current amplitude Irf/Ic ≈ 3.81, and an even sequence of steps at Irf/Ic ≈ 3.96. For Irf/Ic ≈ 2.22, both even and odd steps are present after the 4th step. The measured rf power and frequency dependences of the step heights are in excellent agreement with the Resistively-Shunted Junction (RSJ) model predictions. © 1990, Elsevier Science Publishers B.V. (North-Holland). All rights reserved.
引用
收藏
页码：1629 / 1630
页数：2
相关论文
共 50 条
  • [1] SUPERCONDUCTING PHONON STRUCTURE IN ULTRATHIN PROXIMITY-EFFECT TUNNEL-JUNCTIONS
    BERMON, S
    SO, CK
    PHYSICAL REVIEW B, 1978, 17 (11): : 4256 - 4259
  • [2] Calorimetric Readout of a Superconducting Proximity-Effect Thermometer
    Meschke, M.
    Peltonen, J. T.
    Courtois, H.
    Pekola, J. P.
    JOURNAL OF LOW TEMPERATURE PHYSICS, 2009, 154 (5-6) : 190 - 198
  • [3] THERMAL EFFECTS IN SUPERCONDUCTING PROXIMITY-EFFECT BRIDGES
    DECKER, SK
    PALMER, DW
    JOURNAL OF APPLIED PHYSICS, 1977, 48 (05) : 2043 - 2049
  • [4] Calorimetric Readout of a Superconducting Proximity-Effect Thermometer
    M. Meschke
    J. T. Peltonen
    H. Courtois
    J. P. Pekola
    Journal of Low Temperature Physics, 2009, 154 : 190 - 198
  • [5] Detecting topological superconductivity using low-frequency doubled Shapiro steps
    Sau, Jay D.
    Setiawan, F.
    PHYSICAL REVIEW B, 2017, 95 (06)
  • [6] Low-frequency noise in Josephson junctions for superconducting qubits
    Eroms, J.
    van Schaarenburg, L. C.
    Driessen, E. F. C.
    Plantenberg, J. H.
    Huizinga, C. M.
    Schouten, R. N.
    Verbruggen, A. H.
    Harmans, C. J. P. M.
    Mooij, J. E.
    APPLIED PHYSICS LETTERS, 2006, 89 (12)
  • [7] CRITICAL CURRENT ANOMALY IN SUPERCONDUCTING PROXIMITY-EFFECT BRIDGES
    DHARMADURAI, G
    RATNAM, BA
    PHYSICS LETTERS A, 1978, 67 (01) : 49 - 52
  • [8] COMPOUND GEOMETRICAL RESONANCES IN SUPERCONDUCTING PROXIMITY-EFFECT SANDWICHES
    GALLAGHER, WJ
    PHYSICAL REVIEW B, 1980, 22 (03): : 1233 - 1236
  • [9] COMPOUND GEOMETRICAL RESONANCES IN SUPERCONDUCTING PROXIMITY-EFFECT SANDWICHES
    GALLAGHER, WJ
    BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1980, 25 (03): : 168 - 168
  • [10] Parameter of the Proximity-Effect Strength in MoRe Superconducting Films
    Rudenko, Eh. M.
    Korotash, I. V.
    Krakovnyy, A. O.
    Dubyna, D. S.
    METALLOFIZIKA I NOVEISHIE TEKHNOLOGII, 2012, 34 (02): : 269 - 274
12345