POSSIBLE PHASE-LOCKING OF VERTICALLY STACKED JOSEPHSON FLUX-FLOW OSCILLATORS

被引:52
作者
USTINOV, AV [1 ]
KOHLSTEDT, H [1 ]
HEIDEN, C [1 ]
机构
[1] UNIV GIESSEN, INST ANGEW PHYS, D-35392 GIESSEN, GERMANY
关键词
D O I
10.1063/1.112014
中图分类号
O59 [应用物理学];
学科分类号
摘要
A system of two vertically stacked Nb/Al-AlO(x)/Nb long Josephson junctions is studied experimentally. Tle magnetic coupling between the junctions is provided by their common electrode of the thickness d approximately lambda(L). The current-voltage characteristics of the stack displays resonant steps which are understood to be the phase-locked flux-flow resonances of the two junctions. These modes can be tuned by the magnetic field in a broad voltage range which corresponds to the Josephson frequencies between 150 and 600 GHz. Our observations suggest a possibility of application of the stacked long Josephson junctions as local oscillators for millimeter and submillimeter wave circuits.
引用
收藏
页码:1457 / 1459
页数:3
相关论文
共 10 条
  • [1] COHERENCE OF JOSEPHSON SOLITON OSCILLATORS IN THE MILLIMETER-WAVE RANGE
    CIRILLO, M
    MODENA, I
    SANTUCCI, F
    CARELLI, P
    LEONI, R
    [J]. PHYSICS LETTERS A, 1992, 167 (02) : 175 - 178
  • [2] PHASE LOCKING BETWEEN JOSEPHSON SOLITON OSCILLATORS
    HOLST, T
    HANSEN, JB
    GRONBECHJENSEN, N
    BLACKBURN, JA
    [J]. PHYSICAL REVIEW B, 1990, 42 (01): : 127 - 131
  • [3] DYNAMICS OF FLUXONS IN A SYSTEM OF COUPLED JOSEPHSON-JUNCTIONS
    KIVSHAR, YS
    MALOMED, BA
    [J]. PHYSICAL REVIEW B, 1988, 37 (16): : 9325 - 9330
  • [4] Preparation and Properties of Nb/Al-AlOX/Nb Multilayer
    Kohlstedt, H.
    Hallmanns, G.
    Nevirkovets, I. P.
    Guggi, D.
    Heiden, C.
    [J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 1993, 3 (01) : 2197 - 2200
  • [5] SUPERCON DUCTING MILLIMETER WAVE OSCILLATORS AND SIS MIXERS INTEGRATED ON A CHIP
    Koshelets, V. P.
    Shchukin, A. V.
    Shitov, S. V.
    Filippenko, L. V.
    [J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 1993, 3 (01) : 2524 - 2527
  • [6] SUPERRADIANT EMISSION FROM AN ARRAY OF LONG JOSEPHSON-JUNCTIONS
    MONACO, R
    PAGANO, S
    COSTABILE, G
    [J]. PHYSICS LETTERS A, 1988, 131 (02) : 122 - 124
  • [7] FLUXONS IN THIN-FILM SUPERCONDUCTOR-INSULATOR SUPERLATTICES
    SAKAI, S
    BODIN, P
    PEDERSEN, NF
    [J]. JOURNAL OF APPLIED PHYSICS, 1993, 73 (05) : 2411 - 2418
  • [8] COUPLED FLUXON MODES IN STACKED NB/ALOX/NB LONG JOSEPHSON-JUNCTIONS
    USTINOV, AV
    KOHLSTEDT, H
    CIRILLO, M
    PEDERSEN, NF
    HALLMANNS, G
    HEIDEN, C
    [J]. PHYSICAL REVIEW B, 1993, 48 (14): : 10614 - 10617
  • [9] VOLKOV AF, 1987, JETP LETT+, V45, P376
  • [10] LINEWIDTH MEASUREMENTS OF JOSEPHSON FLUX-FLOW OSCILLATORS IN THE BAND 280-330 GHZ
    ZHANG, YM
    WINKLER, D
    CLAESON, T
    [J]. APPLIED PHYSICS LETTERS, 1993, 62 (24) : 3195 - 3197