Charge Transport in a Single Superconducting Tin Nanowire Encapsulated in a Multiwalled Carbon Nanotube

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• 作者：Nikolaos Tombros ; Luuk Buit ; Imad Arfaoui ; Theodoros Tsoufis ; Dimitrios Gournis ; Pantelis N. Trikalitis ; Sense Jan van der Molen ; Petra Rudolf ; Bart J. van Wees
• 刊名：Nano Letters
• 出版年：2008
• 出版时间：September 10, 2008
• 年：2008
• 卷：8
• 期：9
• 页码：3060-3064
• 全文大小：197K
• 年卷期：v.8,no.9(September 10, 2008)
• ISSN：1530-6992

文摘

The charge transport properties of single superconducting tin nanowires encapsulated by multiwalled carbon nanotubes have been investigated by multiprobe measurements. The multiwalled carbon nanotube protects the tin nanowire from oxidation and shape fragmentation and therefore allows us to investigate the electronic properties of stable wires with diameters as small as 25 nm. The transparency of the contact between the Ti/Au electrode and nanowire can be tuned by argon ion etching the multiwalled nanotube. Application of a large electrical current results in local heating at the contact which in turn suppresses superconductivity.