Characterization of dual high transition temperature superconducting quantum interference device first-order planar gradiometers on a chip

Kuen Lin Chen*, Hong Chang Yang, P. C. Ko, H. E. Horng

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

1 引文 斯高帕斯(Scopus)

摘要

The dual first-order planar gradiometers of high transition temperature (high- Tc) superconducting quantum interference devices (SQUIDs) were designed and fabricated on a 10×10 mm2 SrTiO3 bicrystal substrate. Each gradiometer consists of four bare SQUIDs which are connected to two symmetric pickup loops. Any two of the SQUIDs can be connected in series to obtain better performance. In this study, by selecting the coupling direction of SQUID, a balance resolution of 0.08% was achieved. And, a second-order electronic planar gradiometer was composed of these two first-order gradiometers. Experimental data showed that the noise performance of the second-order electronic planar gradiometer composed of two planar first-order gradiometers can reach 15 μ 0 / Hz1/2 at 1 kHz in an unshielded environment, which is comparable to the noise level of a magnetometer in a shielded environment.

原文英語
文章編號064503
期刊Journal of Applied Physics
108
發行號6
DOIs
出版狀態已發佈 - 2010 九月 15
對外發佈

ASJC Scopus subject areas

  • 物理與天文學 (全部)

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