Anomalous critical current in double-barrier Nb/Al-AlOx-Al-AlOx-Nb devices

被引：28

作者：

Nevirkovets, IP ^{[1
]}

Ketterson, JB

Lomatch, S

机构：

[1] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA

[2] Northwestern Univ, Dept Elect & Comp Engn, Evanston, IL 60208 USA

[3] Natl Acad Sci Ukraine, Inst Phys Met, UA-252680 Kiev, Ukraine

来源：

APPLIED PHYSICS LETTERS | 1999年 / 74卷 / 11期

关键词：

D O I：

10.1063/1.123637

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Double-barrier Nb/Al-AlOx-Al-AlOx-Nb devices with a "dirty'' middle Al layer were fabricated and investigated. An anomalously large Josephson critical current at low temperatures and a nonmonotonic dependence of the device resistance on the thickness of the middle Al layer were found. (C) 1999 American Institute of Physics. [S0003-6951(99)02011-2].

引用

页码：1624 / 1626

页数：3

共 14 条

[1] TUNNELING BETWEEN SUPERCONDUCTORS [J].

AMBEGAOKAR, V ;

BARATOFF, A .

PHYSICAL REVIEW LETTERS, 1963, 10 (11) :486-&

[2] FABRICATION AND PROPERTIES OF SUPERCONDUCTING DOUBLE-BARRIER STRUCTURES [J].

BABAYAN, GE ;

FILIPPENKO, LV ;

OVSYANNIKOV, GA ;

UVAROV, OB ;

KOSHELETS, VP .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 1991, 4 (09) :476-478

[3] PELTIER EFFECT IN NORMAL-METAL-SUPERCONDUCTOR MICROCONTACTS [J].

BARDAS, A ;

AVERIN, D .

PHYSICAL REVIEW B, 1995, 52 (17) :12873-12877

[4] EXTREME CRITICAL-TEMPERATURE ENHANCEMENT OF AL BY TUNNELING IN NB/ALOX/AL/ALOX/NB TUNNEL-JUNCTIONS [J].

BLAMIRE, MG ;

KIRK, ECG ;

EVETTS, JE ;

KLAPWIJK, TM .

PHYSICAL REVIEW LETTERS, 1991, 66 (02) :220-223

[5] Superconducting proximity effect through high-quality high-conductance tunnel barriers [J].

Capogna, L ;

Blamire, MG .

PHYSICAL REVIEW B, 1996, 53 (09) :5683-5687

[6]

Frolov S.M., 2006, ZH EKSP TEOR FIZ, V74

[7] DETERMINATION OF ENERGY GAP OF A SUPERCONDUCTING TIN-LEAD SANDWICH BY ELECTRON TUNNELING [J].

GILABERT, A ;

ROMAGNAN, JP ;

GUYON, E .

SOLID STATE COMMUNICATIONS, 1971, 9 (15) :1295-&

[8] ENHANCEMENT OF SUPERCONDUCTIVITY FAR ABOVE THE CRITICAL-TEMPERATURE IN DOUBLE-BARRIER TUNNEL-JUNCTIONS [J].

HESLINGA, DR ;

KLAPWIJK, TM .

PHYSICAL REVIEW B, 1993, 47 (09) :5157-5164

[9] Overdamped Josephson junctions with Nb/AlOx/Al/AlOx/Nb structure for integrated circuit application [J].

Maezawa, M ;

Shoji, A .

APPLIED PHYSICS LETTERS, 1997, 70 (26) :3603-3605

[10] TUNNELING MODEL OF SUPERCONDUCTING PROXIMITY EFFECT [J].

MCMILLAN, WL .

PHYSICAL REVIEW, 1968, 175 (02) :537-&

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