FABRICATION OF TLCABACUO STEP-EDGE JOSEPHSON-JUNCTIONS WITH HYSTERETIC BEHAVIOR

被引:27
作者
MARTENS, JS [1 ]
HIETALA, VM [1 ]
ZIPPERIAN, TE [1 ]
VAWTER, GA [1 ]
GINLEY, DS [1 ]
TIGGES, CP [1 ]
PLUT, TA [1 ]
HOHENWARTER, GKG [1 ]
机构
[1] UNIV WISCONSIN,DEPT ELECT & COMP ENGN,MADISON,WI 53706
关键词
D O I
10.1063/1.106506
中图分类号
O59 [应用物理学];
学科分类号
摘要
One way to create hysteretic Josephson junctions from the currently available nonhysteretic high temperature superconducting junctions is to artificially add capacitance. We have adapted a multilayer technique for artificial capacitance addition/grain boundary modification to produce TlCaBaCuO step-edge junctions exhibiting large amounts of hysteresis at 77 K. A gaplike structure is present at 32-36 mV that has a temperature dependence that does not contradict that predicted by the Bardeen-Cooper-Schrieffer theory. In addition, the junctions show fast switching times, less than a fixture limited 20 ps, and Fraunhofer-like dependence of critical current on magnetic field.
引用
收藏
页码:1013 / 1015
页数:3
相关论文
共 13 条
  • [1] ALL A-AXIS ORIENTED YBA2CU3O7-Y-PRBA2CU3O7-Z-YBA2CU3O7-Y JOSEPHSON DEVICES OPERATING AT 80-K
    BARNER, JB
    ROGERS, CT
    INAM, A
    RAMESH, R
    BERSEY, S
    [J]. APPLIED PHYSICS LETTERS, 1991, 59 (06) : 742 - 744
  • [2] BI-EPITAXIAL GRAIN-BOUNDARY JUNCTIONS IN YBA2CU3O7
    CHAR, K
    COLCLOUGH, MS
    GARRISON, SM
    NEWMAN, N
    ZAHARCHUK, G
    [J]. APPLIED PHYSICS LETTERS, 1991, 59 (06) : 733 - 735
  • [3] SUBSTRATE STEP-EDGE YBA2CU3O7 RF SQUIDS
    DALY, KP
    DOZIER, WD
    BURCH, JF
    COONS, SB
    HU, R
    PLATT, CE
    SIMON, RW
    [J]. APPLIED PHYSICS LETTERS, 1991, 58 (05) : 543 - 545
  • [4] PRACTICAL HIGH TC-JOSEPHSON JUNCTIONS AND DC SQUIDS OPERATING ABOVE 85K
    DIIORIO, MS
    YOSHIZUMI, S
    YANG, KY
    ZHANG, J
    MAUNG, M
    [J]. APPLIED PHYSICS LETTERS, 1991, 58 (22) : 2552 - 2554
  • [5] ORIENTATION DEPENDENCE OF GRAIN-BOUNDARY CRITICAL CURRENTS IN YBA2CU3O7-DELTA BICRYSTALS
    DIMOS, D
    CHAUDHARI, P
    MANNHART, J
    LEGOUES, FK
    [J]. PHYSICAL REVIEW LETTERS, 1988, 61 (02) : 219 - 222
  • [6] CAVITY SELF-INDUCED STEP FOR A DAYEM BRIDGE
    LEVINSEN, MT
    [J]. APPLIED PHYSICS LETTERS, 1974, 24 (05) : 247 - 249
  • [7] SUPERCONDUCTING WEAK LINKS
    LIKHAREV, KK
    [J]. REVIEWS OF MODERN PHYSICS, 1979, 51 (01) : 101 - 159
  • [8] LIKHAREV KK, 1985, DYNAMICS JOSEPHSON J, pCH12
  • [9] ICR PRODUCTS OF TUNNEL-JUNCTIONS WITH DEPRESSED ORDER PARAMETER
    MANNHART, J
    MARTINOLI, P
    [J]. APPLIED PHYSICS LETTERS, 1991, 58 (06) : 643 - 644
  • [10] MARTENS JS, IN PRESS APPL PHYS L