Conductance and leakage in superconducting tunnel junctions

被引：3

作者：

Goodchild, MS ^{[1
]}

Barber, ZH ^{[1
]}

Blamire, MG ^{[1
]}

机构：

[1] UNIV CAMBRIDGE,DEPT MAT SCI,CAMBRIDGE CB2 3QZ,ENGLAND

来源：

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS | 1996年 / 14卷 / 04期

关键词：

D O I：

10.1116/1.580031

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report an analysis of data from Nb/AlOx/Nb tunnel junctions. We show that both conductance and subgap leakage follow simple scaling laws as a function of oxidation conditions. The leakage effects are discussed in terms of a simple physical model of tunnel barrier inhomogeneity that is also applicable to directly deposited barriers on NbN. We demonstrate that an improvement in barrier properties can be achieved by the use of a buffer layer overlying the barrier, and that this improvement is consistent with a model based on resputtering effects. (C) 1996 American Vacuum Society.

引用

页码：2427 / 2432

页数：6

共 50 条

[31] Development of superconducting tunnel junctions for EUV detectors
Takizawa, Y
Ikeda, T
Oku, T
Otani, C
Kawai, K
Sato, H
Shimizu, HM
Mikami, H
Miyasaka, H
Watanabe, H
SURFACE REVIEW AND LETTERS, 2002, 9 (01) : 561 - 565
[32] ANOMALOUS TEMPERATURE DEPENDENCE IN SUPERCONDUCTING TUNNEL JUNCTIONS
LIPSON, SG
KUPER, CG
RON, A
PHYSICA, 1971, 55 (NOCT): : 269 - &
[33] Rashba proximity states in superconducting tunnel junctions
Entin-Wohlman, O.
Shekhter, R. I.
Jonson, M.
Aharony, A.
LOW TEMPERATURE PHYSICS, 2018, 44 (06) : 543 - 551
[34] On the development of superconducting tunnel junctions for use in astronomy
Kraft, S
Verhoeve, P
Rando, N
van Dordrecht, A
Poelaert, A
den Hartog, R
Owens, A
Bavdaz, M
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1999, 436 (1-2): : 238 - 242
[35] Current fluctuations in rough superconducting tunnel junctions
Heinrich, Georg
Wilhelm, F. K.
PHYSICAL REVIEW B, 2009, 80 (21)
[36] SUPERCONDUCTING TUNNEL JUNCTIONS WITH A NON CONVENTIONAL INSULATOR
FARACI, G
GIAQUINT.G
MANCINI, NA
PHYSICS LETTERS A, 1969, A 30 (07) : 400 - &
[37] APPARATUS FOR MEASURING CHARACTERISTICS OF SUPERCONDUCTING TUNNEL JUNCTIONS
ROGERS, JS
ADLER, JG
WOODS, SB
REVIEW OF SCIENTIFIC INSTRUMENTS, 1964, 35 (02): : 208 - &
[38] On the development of superconducting tunnel junctions for use in astronomy
Space Sci. Dept. Europ. Space Agy., P.O. Box 299, NL-2200 AG the, Noordwijk, Netherlands
Nucl Instrum Methods Phys Res Sect A, 1-2 (238-242):
[39] Nonequilibrium and relaxation effects in tunnel superconducting junctions
Bezuglyi, E. V.
Vasenko, A. S.
Bratus, E. N.
SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2017, 30 (02):
[40] SUPERCONDUCTING TUNNEL JUNCTIONS AS VERY FAST DETECTORS
ADKINS, CJ
PHYSICS LETTERS A, 1973, A 43 (06) : 537 - 538

← 1 2 3 4 5 →