FABRICATION AND CHARACTERIZATION OF YBA2CU3O7 STEP-EDGE JUNCTION ARRAYS

被引:39
作者
REUTER, W [1 ]
SIEGEL, M [1 ]
HERRMANN, K [1 ]
SCHUBERT, J [1 ]
ZANDER, W [1 ]
BRAGINSKI, AI [1 ]
MULLER, P [1 ]
机构
[1] WALTHER MEISSNER INST TIEFTEMP FORSCH,W-8046 GARCHING,GERMANY
关键词
D O I
10.1063/1.109395
中图分类号
O59 [应用物理学];
学科分类号
摘要
We investigated one-dimensional arrays with up to 600 step-edge Josephson junctions (SEJ) fabricated by pulsed laser deposition of YBa2Cu3O7 (YBCO) films on steep steps in epitaxial LaAlO3 substrates. The steps were prepared by Ar-ion milling and the YBCO thin films were patterned either by Ar-ion milling or by an inhibit process. The current-voltage (I-V) characteristics and the Josephson emission of a single SEJ show that it consists of two resistively shunted-junction-type (RSJ) weak links in series which have different critical currents, I(C1), and I(C2). The I-V characteristics of our arrays were also close to the RSJ-model. The number of series-connected weak links deduced from the I-V curves was usually higher than the number of steps. Histograms of the individual weak link I(CS) showed two peaks at I(C1) and I(C2). The I(C) spread was about +/- 20% to +/- 40% of these two values. Radiation from arrays was detected and an evidence of phase locking in Josephson junction clusters obtained.
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页码:2280 / 2282
页数:3
相关论文
共 13 条
[1]   COHERENT EMISSION FROM 2-DIMENSIONAL JOSEPHSON JUNCTION ARRAYS [J].
BENZ, SP ;
BURROUGHS, CJ .
APPLIED PHYSICS LETTERS, 1991, 58 (19) :2162-2164
[2]   IMPROVED INHIBIT PATTERNING OF YBA2CU3O7 THIN-FILMS [J].
COPETTI, CA ;
GASSIG, U ;
ZANDER, W ;
SCHUBERT, J ;
BUCHAL, C .
APPLIED PHYSICS LETTERS, 1992, 61 (25) :3041-3043
[3]  
DIVIN YY, IN PRESS APPL PHYS L
[4]  
GLYANTSEV VN, 1993, IEEE T SUPECOND, V3
[5]   STATIC AND DYNAMIC INTERACTIONS BETWEEN JOSEPHSON-JUNCTIONS [J].
HANSEN, JB ;
LINDELOF, PE .
REVIEWS OF MODERN PHYSICS, 1984, 56 (03) :431-459
[6]   CHARACTERIZATION OF YBA2CU3O7 STEP-EDGE JOSEPHSON-JUNCTIONS [J].
HERRMAN, K ;
ZHANG, Y ;
MUCK, HM ;
SCHUBERT, J ;
ZANDER, W ;
BRAGINSKI, AI .
SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 1991, 4 (11) :583-586
[7]  
HUSEMAN KD, UNPUB
[8]   MUTUAL PHASE-LOCKING IN JOSEPHSON JUNCTION ARRAYS [J].
JAIN, AK ;
LIKHAREV, KK ;
LUKENS, JE ;
SAUVAGEAU, JE .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1984, 109 (06) :309-426
[9]  
Likharev K. K, 1986, DYNAMICS JOSEPHSON J
[10]  
MULLER P, UNPUB