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arXiv 0803.1563cond-mat.mes-hall
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具有超导引线和正常金属岛的混合单电子晶体管的量子化电流

Quantized current of a hybrid single-electron transistor with superconducting leads and a normal-metal island

Antti Kemppinen, Matthias Meschke, Mikko Möttönen, Dmitri V. Averin, Jukka P. Pekola

摘要:

我们讨论了超导体-绝缘体-正常金属-绝缘体-超导体(SINIS)旋转栅门的操作。这种电压偏置混合单电子晶体管(SET)提供电流量化,即使只有一个射频(rf)控制参数,即单岛的栅极电压。我们给出了一个概述的主要误差机制的旋转栅门,并考虑其作为量子电流标准的可行性。我们还提出了实验结果的SINIS结构的泵送,这表明减少泄漏电流相比,早期的测量与相反的NISIN结构。

英文摘要:

We discuss the operation of the superconductor - insulator - normal-metal - insulator - superconductor (SINIS) turnstile. This voltage-biased hybrid single-electron transistor (SET) provides current quantization even with only one radio-frequency (rf) control parameter, namely the gate voltage of the single island. We give an overview of the main error mechanisms of the turnstile and consider its feasibility as a quantum current standard. We also present experimental results of pumping with the SINIS structure which show decreased leakage current compared to earlier measurements with the opposite NISIN structure.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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