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首页> 外文期刊>Superconductor Science & Technology >Principle and experimental investigation of current-driven negative-inductance superconducting quantum interference device
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Principle and experimental investigation of current-driven negative-inductance superconducting quantum interference device

机译：电流驱动负电感超导量子干涉装置的原理与实验研究

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摘要

A negative-inductance superconducting quantum interference device (nSQUID) is an adiabatic superconducting logic device with high energy efficiency, and therefore a promising building block for large-scale low-power superconducting computing. However, the principle of the nSQUID is not that straightforward and an nSQUID driven by voltage is vulnerable to common mode noise. We investigate a single nSQUID driven by current instead of voltage, and clarify the principle of the adiabatic transition of the current-driven nSQUID between different states. The basic logic operations of the current-driven nSQUID with proper parameters are simulated by WRspice. The corresponding circuit is fabricated with a 100 A cm(-2) Nb-based lift-off process, and the experimental results at low temperature confirm the basic logic operations as a gated buffer.
机译：负电感超导量子干涉装置（NSQUID）是具有高能量效率的绝热超导逻辑装置，因此是大规模低功耗超导计算的有希望的构建块。 然而，nsquid的原理并不是那么直接和由电压驱动的nsquid容易受到共模噪声的攻击。 我们调查由电流驱动而不是电压驱动的单个nsquid，并阐明不同状态之间的电流驱动的nsquid的绝热转换原理。 具有适当参数的当前驱动的nsquid的基本逻辑操作由WRSpice模拟。 相应的电路用100mB（-2）基于Nb的剥离过程制造，并且在低温下的实验结果证实了作为门控缓冲器的基本逻辑操作。

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