The step-edge type HTS rf SQUID coupling with a LC circuit in ultra-low field NMR system

Linghu, Kehuan; Guo, Zhengshan; Li, Yulong; Xu, Tie‐Quan; Luo, Wenhao; Huang, Zigeng; Jin, Young-Woo; Zheng, Dewen; Wang, Furen; Gan, Zizhao

doi:10.1016/j.physc.2019.05.004

Cited by 2 publications

(1 citation statement)

References 21 publications

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“…利用SQUID极低噪声的优势, 清华大学、中国科学院高能物理所 (简称为高能所)和上海微系统所等单位还制作了阵列形式的SQUID放大器 [67,68] , 可用于超导转变边沿探测器信号的读出. 如果将SQUID尺寸做得很小(如nano-SQUID), 虽然磁场分辨率会变差, 但空间分辨率将显著增加, 因此可以作为SQUID 显微镜、磁化率计等 [69] . 以上提到的SQUID都是以低温超导材料为主, 近年来国内也有少量高温 SQUID器件的研究 [70] .…”

Section: 年华东交通大学利用三模谐振器研制了一款unclassified

Recent progress of superconducting electronics in China

Li¹,

Wang²,

Wu³

et al. 2021

Acta Phys. Sin.

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It has been nearly 110 years since the discovery of superconductors, and more than 30 years since the discovery of high temperature superconductors (HTS). Great progress has been made in the application of superconducting electronics in the last two decades. HTS microwave devices have shown much higher perfomance than the traditional ones and have found their ways to the industry applications in mobile communication, radar, and special communication applications. Owing to the ultrahigh sensitivity to magnetic fields and currents, superconducting quantum interference devices (SQUIDs) have been used as the irresplacible sensors in geological surveying, magnetic resonanc imaging, biomagnetic imaging, and other areas. The sensitivity of superconducting radiation detectors such as superconducting SIS mixer, superconducting hot electron bolometer, superconducting transition edge sensor, superconducting nanowire single photon detector, and superconducting microwave kinetic inductance detector are near the quantum limitation. They are now key technology in geophysics, astrophysics, quantum information science, biomedicine, and so on. Superconducting Josephson parametric amplifier has become a key element for superconducting quantum computing. Superconducting integrated circuit has been included in the international roadmap for devices and systems, and shows that having the potential to become one of the mainstreams for post-Moore information processing technology. In metrology, superconducting Josephson effect and Josephson junction array devices have been widely used in the redefinition of quantum voltage reference and basic units of the International system of Units. Superconducting electronics plays an important role in the current quantum information technology boom, which in turn promotes the development of superconducting electronics. This review will brief introduce the research and application of superconducting electronics in China in recent years.

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