PROPERTIES OF YBA2CU3O7-X/YBA2CU2.79CO0.21O7-X/YBA2CU3O7-X EDGE JUNCTIONS

被引：63
作者：
CHAR, K
ANTOGNAZZA, L
GEBALLE, TH
机构：
[1] Conductus, Inc., Suunyvale
来源：
APPLIED PHYSICS LETTERS | 1994年 / 65卷 / 07期
关键词：
D O I：
10.1063/1.112196
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report the properties of YBa2Cu3O7-x/YBa2Cu2.79Co0.21O7-x/YBa2Cu3O7-x junctions in an edge junction geometry as a function of temperature and barrier thickness. The barrier material used in this work, YBa2Cu2.79Co0.21O7-x, is an underdoped version of YBa2Cu3O7-x, which has a lower carrier density, a lower T(c), and a higher anisotropy than YBa2Cu3O7-x. The resistances of the junctions are proportional to the thicknesses of their barriers, suggesting the presence of very little interface resistance. The temperature dependences of critical currents and junction resistances show behavior consistent with that predicted by the conventional proximity effect.
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页码：904 / 906
页数：3
相关论文
共 16 条
[1]  
ANTOGNAZZA L, UNPUB APPL PHYS LETT
[2]   LANTHANUM AND CALCIUM-DOPED YBA2CU3OY FILMS GROWN AT LOW-TEMPERATURE AND PRESSURE [J].
APPELBOOM, HM ;
SATO, H ;
NAITO, M .
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1994, 221 (1-2) :125-135
[3]   TEMPERATURE-DEPENDENCE OF THE HALL ANGLE IN SINGLE-CRYSTAL YBA2(CU1-XCOX)3O7-DELTA [J].
CARRINGTON, A ;
MACKENZIE, AP ;
LIN, CT ;
COOPER, JR .
PHYSICAL REVIEW LETTERS, 1992, 69 (19) :2855-2858
[4]   EXTENSION OF THE BI-EPITAXIAL JOSEPHSON JUNCTION PROCESS TO VARIOUS SUBSTRATES [J].
CHAR, K ;
COLCLOUGH, MS ;
LEE, LP ;
ZAHARCHUK, G .
APPLIED PHYSICS LETTERS, 1991, 59 (17) :2177-2179
[5]   STUDY OF INTERFACE RESISTANCES IN EPITAXIAL YBA2CU3O7-X/BARRIER/YBA2CU3O7-X JUNCTIONS [J].
CHAR, K ;
ANTOGNAZZA, L ;
GEBALLE, TH .
APPLIED PHYSICS LETTERS, 1993, 63 (17) :2420-2422
[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]   NEW EXPERIMENTAL TECHNIQUE FOR DETERMINING BCS INTERACTION PARAMETER IN NORMAL METALS [J].
CLARKE, J ;
THORP, TL ;
RAPPAPORT, ML ;
FREAKE, SM .
SOLID STATE COMMUNICATIONS, 1972, 11 (05) :689-+
[8]  
de Gennes P. G., 1966, SUPERCONDUCTIVITY ME
[9]   PRACTICAL HIGH TC-JOSEPHSON JUNCTIONS AND DC SQUIDS OPERATING ABOVE 85K [J].
DIIORIO, MS ;
YOSHIZUMI, S ;
YANG, KY ;
ZHANG, J ;
MAUNG, M .
APPLIED PHYSICS LETTERS, 1991, 58 (22) :2552-2554
[10]   DETERMINATION OF DOPANT SITE OCCUPANCIES IN CU-SUBSTITUTED YBA2CU3O7-DELTA BY DIFFERENTIAL ANOMALOUS X-RAY-SCATTERING [J].
HOWLAND, RS ;
GEBALLE, TH ;
LADERMAN, SS ;
FISCHERCOLBRIE, A ;
SCOTT, M ;
TARASCON, JM ;
BARBOUX, P .
PHYSICAL REVIEW B, 1989, 39 (13) :9017-9027
12