PROPERTIES OF STACKED NB/AL-ALOX/NB TUNNEL-JUNCTIONS

被引：14

作者：

NEVIRKOVETS, IP ^{[1
]}

KOHLSTEDT, H ^{[1
]}

HALLMANNS, G ^{[1
]}

HEIDEN, C ^{[1
]}

机构：

[1] FORSCHUNGSZENTRUM JULICH, FORSCHUNGSZENTRUM, INST SCHICHT & IONENTECH, W-5170 JULICH 1, GERMANY

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1993年 / 6卷 / 02期

关键词：

D O I：

10.1088/0953-2048/6/2/012

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Successful fabrication of stacked Nb-(Al/AlOx-Nb)n superconducting tunnel junctions with n = 3 is reported. Coupling effects are visible in the three measured Fraunhofer patterns of the individual junctions. One of the patterns always shows a considerable field spreading in comparison with the other two patterns, as if the corresponding junction area were much smaller. Negative resistance measured as a function of temperature between 4.2 K and 2 K, in the sum gap region of the I-V characteristics, indicates heating effects.

引用

页码：146 / 149

页数：4

共 15 条

[1]

AMIN H, 1991, 3RD INT SUP EL C ISE, P468

[2]

AMIN H, 1992, UNPUB APPLIED SUPERC

[3] PROPAGATION AND GENERATION OF JOSEPHSON RADIATION IN SUPERCONDUCTOR-INSULATOR SUPERLATTICES [J].

AUVIL, PR ;

KETTERSON, JB .

JOURNAL OF APPLIED PHYSICS, 1987, 61 (05) :1957-1966

[4] NB/ALOX/NB TRILAYER PROCESS FOR THE FABRICATION OF SUBMICRON JOSEPHSON-JUNCTIONS AND LOW-NOISE DC SQUIDS [J].

BHUSHAN, M ;

MACEDO, EM .

APPLIED PHYSICS LETTERS, 1991, 58 (12) :1323-1325

[5] HIGH-QUALITY REFRACTORY JOSEPHSON TUNNEL-JUNCTIONS UTILIZING THIN ALUMINUM LAYERS [J].

GURVITCH, M ;

WASHINGTON, MA ;

HUGGINS, HA .

APPLIED PHYSICS LETTERS, 1983, 42 (05) :472-474

[6] STATIC AND DYNAMIC INTERACTIONS BETWEEN JOSEPHSON-JUNCTIONS [J].

HANSEN, JB ;

LINDELOF, PE .

REVIEWS OF MODERN PHYSICS, 1984, 56 (03) :431-459

[7] DIGITAL LOGIC-CIRCUITS [J].

HASUO, S ;

IMAMURA, T .

PROCEEDINGS OF THE IEEE, 1989, 77 (08) :1177-1193

[8] PREPARATION AND CHARACTERISTICS OF NB/AL-OXIDE-NB TUNNEL-JUNCTIONS [J].

HUGGINS, HA ;

GURVITCH, M .

JOURNAL OF APPLIED PHYSICS, 1985, 57 (06) :2103-2109

[9] EFFECTS OF INTRINSIC STRESS ON SUBMICROMETER NB/ALOX/NB JOSEPHSON-JUNCTIONS [J].

IMAMURA, T ;

HASUO, S .

IEEE TRANSACTIONS ON MAGNETICS, 1989, 25 (02) :1119-1122

[10] EVALUATION OF ALOX BARRIER THICKNESS IN NB JOSEPHSON-JUNCTIONS USING ANODIZATION PROFILES [J].

IMAMURA, T ;

HASUO, S .

APPLIED PHYSICS LETTERS, 1989, 55 (24) :2550-2552

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