ASYMMETRIC YBA2CU3O7-X DC SQUID - A 3-TERMINAL DEVICE WITH CURRENT GAIN AT 77-K

被引：16

作者：

KOELLE, D

KLEINER, R

LUDWIG, F

MIKLICH, AH

DANTSKER, E

CLARKE, J

机构：

[1] UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720

[2] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV PHYS,BERKELEY,CA 94720

来源：

APPLIED PHYSICS LETTERS | 1995年 / 66卷 / 05期

关键词：

D O I：

10.1063/1.114145

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have fabricated asymmetric, two-junction YBa2Cu3O7-x dc superconducting quantum interference devices (SQUIDs) on SrTiO3 bicrystal substrates and used them as three-terminal amplifiers by injecting signal currents directly into part of the superconducting loop. Using a second, readout SQUID to monitor changes in the critical current, we have achieved current gains up to 2.3 at 77 K. By coupling two SQUIDs together, we have increased the gain to 8.5 at 77 K. The experimental results are compared with numerical simulations, which are used to discuss potential increases in the gain. © 1995 American Institute of Physics.

引用

页码：640 / 642

页数：3

共 13 条

[1] MAGNETIC-FIELD-EFFECT 3-TERMINAL DEVICE BASED ON YBA2CU3O7-DELTA GRAIN-BOUNDARY JUNCTIONS [J].