INTEGRATED HIGH-TRANSITION TEMPERATURE MAGNETOMETER WITH ONLY 2 SUPERCONDUCTING LAYERS

被引：22

作者：

KROMANN, R

KINGSTON, JJ

MIKLICH, AH

SAGDAHL, LT

CLARKE, J

机构：

[1] LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720

[2] NKT RES CTR,DK-2605 BONDBY,DENMARK

[3] XEROX PARC,PALO ALTO,CA 94304

[4] NORWEGIAN INST TECHNOL,DEPT PHYS,N-7034 TRONDHEIM,NORWAY

来源：

APPLIED PHYSICS LETTERS | 1993年 / 63卷 / 04期

关键词：

D O I：

10.1063/1.110781

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We describe the fabrication and testing of an integrated YBa2Cu3O7-x thin-film magnetometer consisting of a dc superconducting quantum interference device (SQUID), with biepitaxial grain boundary junctions, integrated with a flux transformer on a single substrate. Only two superconducting layers are required, the SQUID body serving as the crossunder that completes the multiturn flux transformer. The highest temperature at which any of the magnetometers functioned was 76 K. At 60 K the magnetic field gain of this device was 63, and the magnetic field noise was 160 fT Hz-1/2 at 2 kHz, increasing to 3.4 pT Hz-1/2 at 1 Hz.

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页码：559 / 561

页数：3

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