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arXiv 1408.6958cond-mat.mes-hallcond-mat.mtrl-sci
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电子束诱导沉积超导纳米线

Superconducting nanowires by electron-beam-induced deposition

Shamashis Sengupta, Chuan Li, Cedric Baumier, Alik Kasumov, S. Gueron, H. Bouchiat, F. Fortuna

摘要:

超导纳米线可以通过使用Ga离子的聚焦束分解有机金属气体来制造。然而,物理损伤和无意的掺杂往往是由于暴露于离子束,促使人们寻找一种方法来实现类似的结构与电子束,而不是离子。迄今为止,这仍然是一个实验性的挑战。报道了用电子束诱导沉积法制备超导钨纳米线,其临界温度为2.0 K,临界磁场为3.7 T,并与离子制备的超导线进行了比较。这项工作为实现纳米级超导器件开辟了新的可能性,而不需要离子束柱。

英文摘要:

Superconducting nanowires can be fabricated by decomposition of an organometallic gas using a focused beam of Ga ions. However, physical damage and unintentional doping often results from the exposure to the ion beam, motivating the search for a means to achieve similar structures with a beam of electrons instead of ions. This has so far remained an experimental challenge. We report the fabrication of superconducting tungsten nanowires by electron-beam-induced-deposition, with critical temperature of 2.0 K and critical magnetic field of 3.7 T, and compare them with superconducting wires made with ions. This work opens up new possibilities for the realization of nanoscale superconducting devices, without the requirement of an ion beam column.

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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