RELAXATION OSCILLATION SQUIDS WITH HIGH delta V/delta Phi

被引：16

作者：

Adelerhof, D. J. ^{[1
]}

Nijstad, H. ^{[1
]}

Flokstra, J. ^{[1
]}

Rogalla, H. ^{[1
]}

机构：

[1] Univ Twente, Dept Appl Phys, Low Temp Grp, POB 217, NL-7500 AE Enschede, Netherlands

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1993年 / 3卷 / 01期

关键词：

D O I：

10.1109/77.233318

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Relaxation Oscillation SQUIDs (ROSs) based on Nb/Al,AlOx/Al/Nb Josephson tunnel junctions have been designed and fabricated. The hysteretic SQUIDs have a maximum critical current of about 130 A and an inductance of 20 pH. A voltage modulation of 400 mu V and a flux to voltage transfer delta V/delta Phi of 4 mV/Phi(0) have been measured in these SQUIDs. Double Relaxation Oscillation SQUIDs (DROSs), which are based on two hysteretic SQUIDs, showed transfer coefficients up to 77 mV/Phi(0). The intrinsic white flux noise of the DROSs is smaller than 3-5 mu Phi(0)/root Hz. The results are very promising for a next generation of SQUID systems with simplified read-out.

引用

页码：1862 / 1865

页数：4

共 9 条

[1] CHARACTERIZATION OF DIFFERENT TYPES OF NB-ALOX BASED JOSEPHSON TUNNEL-JUNCTIONS [J].

ADELERHOF, DJ ;

HOUWMAN, EP ;

FRANSEN, PBM ;

VELDHUIS, D ;

FLOKSTRA, J ;

ROGALLA, H .

IEEE TRANSACTIONS ON MAGNETICS, 1991, 27 (02) :3153-3156

[2] DC SQUID SYSTEMS OVERVIEW [J].

DRUNG, D .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 1991, 4 (09) :377-385

[3] RELAXATION-OSCILLATION-DRIVEN DC-SQUIDS [J].

GUDOSHNIKOV, SA ;

MASLENNIKOV, YV ;

SEMENOV, VK ;

SNIGIREV, OV ;

VASILIEV, AV .

IEEE TRANSACTIONS ON MAGNETICS, 1989, 25 (02) :1178-1181

[4]

HOUWMAN EP, 1990, THESIS U TWENTE

[5] PLANAR COUPLING SCHEME FOR ULTRA LOW-NOISE DC SQUIDS [J].

JAYCOX, JM ;

KETCHEN, MB .

IEEE TRANSACTIONS ON MAGNETICS, 1981, 17 (01) :400-403

[6]

Maslennikov Yu. V., 1987, Extended Abstracts of 1987 International Superconductivity Electronics Conference (ISEC '87), P144

[7] DC SQUID - NOISE AND OPTIMIZATION [J].

TESCHE, CD ;

CLARKE, J .

JOURNAL OF LOW TEMPERATURE PHYSICS, 1977, 29 (3-4) :301-331

[8] RELAXATION OSCILLATIONS IN JOSEPHSON JUNCTIONS [J].

VERNON, FL ;

PEDERSEN, RJ .

JOURNAL OF APPLIED PHYSICS, 1968, 39 (06) :2661-&

[9] MINIMUM CURRENT AND RELATED TOPICS IN JOSEPHSON TUNNEL JUNCTION DEVICES [J].

ZAPPE, HH .

JOURNAL OF APPLIED PHYSICS, 1973, 44 (03) :1371-1377

← 1 →