Thermal and quantum phase slips in niobium-nitride nanowires based on suspended carbon nanotubes
Thermal and quantum phase slips in niobium-nitride nanowires based on suspended carbon nanotubes
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DOI：
10.1063/1.4952721
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发表时间：
2016-05-30
影响因子：
4
通讯作者：
Maki, Hideyuki
中科院分区：
文献类型：
--
作者：
Masuda, Kohei;Moriyama, Satoshi;Maki, Hideyuki
超导纳米线由于其独特的量子力学性质以及作为下一代量子纳米器件的潜力，如单光子探测器，相位滑移（PS）量子比特和其他混合结构，引起了人们的极大关注。在这项研究中，我们提出的结果一维（1D）的超导电性的纳米线制造的涂层悬浮的碳纳米管与超导薄氮化铌（NbN）膜。在电阻-温度特性曲线中，观察到具有PS事件的一维超导性的标志，具有非常规的负磁阻。我们还证实，交叉之间发生的热和量子PS的温度降低。由AIP出版社出版。
Superconducting nanowires have attracted considerable attention due to their unique quantum-mechanical properties, as well as their potential as next-generation quantum nanodevices, such as single-photon detectors, phase-slip (PS) qubits, and other hybrid structures. In this study, we present the results of one-dimensional (1D) superconductivity in nanowires fabricated by coating suspended carbon nanotubes with a superconducting thin niobium nitride (NbN) film. In the resistance-temperature characteristic curves, hallmarks of 1D superconductivity with PS events are observed with unconventional negative magnetoresistance. We also confirm that a crossover occurs between thermal and quantum PSs as the temperature is lowered. Published by AIP Publishing.