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arXiv 0901.3519cond-mat.mes-hallcond-mat.supr-con
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非平衡纳米线中的磁场诱导超导电性

Magnetic Field Induced Superconductivity in Out-of-Equilibrium Nanowires

Yu Chen, S. Snyder, A. M. Goldman

摘要:

四端电阻测量已进行了使用电子束光刻形成的Zn纳米线。当由电流驱动电阻时,这些线在施加小磁场时重新进入超导状态。这些数据与以前的超导纳米线实验有质的不同,这些实验揭示了T_{c}附近的负磁阻或磁场增强的临界电流。我们认为,我们的观察结果与阻尼的相位滑移过程的增强耗散的准粒子电导通道产生的应用程序的磁场。

英文摘要:

Four-terminal resistance measurements have been carried out on Zn nanowires formed using electron-beam lithography. When driven resistive by current, these wires re-enter the superconducting state upon application of small magnetic fields. The data are qualitatively different from those of previous experiments on superconducting nanowires, which revealed either negative magnetoresistance near T_{c} or magnetic field enhanced critical currents. We suggest that our observations are associated with the damping of phase slip processes by the enhancement of dissipation by the quasiparticle conductance channel resulting from the application of a magnetic field.

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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