Planar thin film YBa2Cu3O7-δ Josephson junctions via nanolithography and ion damage

被引：39

作者：

Katz, AS

Sun, AG

Woods, SI

Dynes, RC

机构：

[1] Univ Calif San Diego, La Jolla, CA 92093 USA

[2] TRW Co Inc, Elect Syst & Technol Div, Redondo Beach, CA 90278 USA

来源：

APPLIED PHYSICS LETTERS | 1998年 / 72卷 / 16期

关键词：

D O I：

10.1063/1.121255

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have developed a process to fabricate planar high-T-c Josephson junctions using nanolithography and a 200 keV ion implanter. Conduction occurs in the ab plane and is interface free. We can systematically tune devices to operate at temperatures between 1 K and the T-c of the undamaged superconducting material by varying the length of the weak link and by changing the amount of ion damage. All of the devices showed clear de and ac Josephson effects. Measurement of R(T) and I-c(T) of the weak Links revealed trends which were consistent with a proximity effect. (C) 1998 American Institute of Physics.

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页码：2032 / 2034

页数：3

相关论文

共 26 条

[1] PROPERTIES OF HIGH-T-C JOSEPHSON-JUNCTIONS WITH Y0.7CA0.3BA2CU3O7-DELTA BARRIER LAYERS [J].

ANTOGNAZZA, L ;

MOECKLY, BH ;

GEBALLE, TH ;

CHAR, K .

PHYSICAL REVIEW B, 1995, 52 (06) :4559-4567

[2] PROXIMITY EFFECT IN YBA2CU3O7-DELTA/YBA2(CU1-XCOX)(3)O-7-DELTA-3/YBA2CU3O7-DELTA JUNCTIONS - FROM THE CLEAN LIMIT TO THE DIRTY LIMIT WITH PAIR-BREAKING [J].

ANTOGNAZZA, L ;

BERKOWITZ, SJ ;

GEBALLE, TH ;

CHAR, K .

PHYSICAL REVIEW B, 1995, 51 (13) :8560-8563

[3] SUPERCONDUCTING WEAK LINKS FORMED BY ION-IMPLANTATION [J].

ARRINGTON, CH ;

DEAVER, BS .

APPLIED PHYSICS LETTERS, 1975, 26 (04) :204-206

[4] Improvements in the properties of electron beam damage YBa2Cu3O7-delta junctions [J].

Blamire, MG ;

Booij, WE ;

Pauza, AJ ;

Tarte, EJ ;

Moore, DF .

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 1997, 7 (02) :2856-2859

[5] PROPERTIES OF YBA2CU3O7-X/YBA2CU2.79CO0.21O7-X/YBA2CU3O7-X EDGE JUNCTIONS [J].

CHAR, K ;

ANTOGNAZZA, L ;

GEBALLE, TH .

APPLIED PHYSICS LETTERS, 1994, 65 (07) :904-906

[6] HIGH-TC SUPERCONDUCTOR-NORMAL-SUPERCONDUCTOR JOSEPHSON-JUNCTIONS USING CARUO3 AS THE METALLIC BARRIER [J].

CHAR, K ;

COLCLOUGH, MS ;

GEBALLE, TH ;

MYERS, KE .

APPLIED PHYSICS LETTERS, 1993, 62 (02) :196-198

[7] EFFECTS OF RADIATION-DAMAGE IN ION-IMPLANTED THIN-FILMS OF METAL-OXIDE SUPERCONDUCTORS [J].

CLARK, GJ ;

MARWICK, AD ;

KOCH, RH ;

LAIBOWITZ, RB .

APPLIED PHYSICS LETTERS, 1987, 51 (02) :139-141

[8]

CONTRERAS R, 1997, THESIS U CALIFORNIA

[9] Superconductor-normal-superconductor behavior of Josephson junctions scribed in Y1Ba2CU3O7-delta by a high-brightness electron source [J].

Davidson, BA ;

Nordman, JE ;

Hinaus, BM ;

Rzchowski, MS ;

Siangchaew, K ;

Libera, M .

APPLIED PHYSICS LETTERS, 1996, 68 (26) :3811-3813

[10] BOUNDARY EFFECTS IN SUPERCONDUCTORS [J].

DEGENNES, PG .

REVIEWS OF MODERN PHYSICS, 1964, 36 (1P1) :225-+