CONTROLLED PREPARATION OF ALL HIGH-TC SNS-TYPE EDGE JUNCTIONS AND DC SQUIDS

被引:151
作者
GAO, J
AARNINK, WAM
GERRITSMA, GJ
ROGALLA, H
机构
[1] University of Twente, Faculty of Applied Physics, 7500 AE Enschede
来源
PHYSICA C | 1990年 / 171卷 / 1-2期
关键词
D O I
10.1016/0921-4534(90)90464-P
中图分类号
O59 [应用物理学];
学科分类号
摘要
High-Tc SNS-type Josephson junctions and DC SQUIDs were successfully fabricated using hetero-epitaxially grown multilayers of YBa2Cu3Ox and PrBa2Cu3Ox. These layers are c-axis oriented and hence edges of the multilayers give rise to a current flow in the ab-plane between the electrodes of a Josephson junction. The necessary structuring was done by Ar ion beam etching. The individual junctions exhibit a supercurrent up to 80 K. The IcRn-product of these junctions usually has a lower limit of 8 mV at 4.2 K. Voltage modulation of the first DC SQUIDs can be observed up to 66 K. Details on the fabrication and measurements are presented. © 1990.
引用
收藏
页码:126 / 130
页数:5
相关论文
共 12 条
[1]   SUPERCURRENTS IN LEAD-COPPER-LEAD SANDWICHES [J].
CLARKE, J .
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1969, 308 (1495) :447-&
[2]  
FACE DW, PREPRINT
[3]   HIGH CRITICAL CURRENT-DENSITY ULTRATHIN YBA2CU3OX FILMS MADE BY A MODIFIED RF-MAGNETRON SPUTTERING TECHNIQUE [J].
GAO, J ;
HAUSER, B ;
ROGALLA, H .
JOURNAL OF APPLIED PHYSICS, 1990, 67 (05) :2512-2515
[4]  
GAO J, IN PRESS APPL SURF S
[5]  
HAUSER B, 1988, APPL PHYS LETT, V52, P844, DOI 10.1063/1.99303
[6]   QUANTUM INTERFERENCE DEVICES MADE FROM SUPERCONDUCTING OXIDE THIN-FILMS [J].
KOCH, RH ;
UMBACH, CP ;
CLARK, GJ ;
CHAUDHARI, P ;
LAIBOWITZ, RB .
APPLIED PHYSICS LETTERS, 1987, 51 (03) :200-202
[7]   LOW-NOISE THIN-FILM TIBACACUO DC SQUIDS OPERATED AT 77-K [J].
KOCH, RH ;
GALLAGHER, WJ ;
BUMBLE, B ;
LEE, WY .
APPLIED PHYSICS LETTERS, 1989, 54 (10) :951-953
[8]  
KOCH RH, PREPRINT
[9]   ALL HIGH-TC EDGE JUNCTIONS AND SQUIDS [J].
LAIBOWITZ, RB ;
KOCH, RH ;
GUPTA, A ;
KOREN, G ;
GALLAGHER, WJ ;
FOGLIETTI, V ;
OH, B ;
VIGGIANO, JM .
APPLIED PHYSICS LETTERS, 1990, 56 (07) :686-688
[10]   EPITAXIAL MULTILAYERS OF YBA2CU3O7 AND PRBA2CU3O7 AS A POSSIBLE BASIS FOR SUPERCONDUCTING ELECTRONIC DEVICES [J].
POPPE, U ;
PRIETO, P ;
SCHUBERT, J ;
SOLTNER, H ;
URBAN, K ;
BUCHAL, C .
SOLID STATE COMMUNICATIONS, 1989, 71 (07) :569-572