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Supercurrent through InAs nanowires with highly transparent superconducting contacts

Nishio, Takahiro ; Kozakai, Tatsuya ; Amaha, Shinichi ; Larsson, Marcus LU ; Nilsson, Henrik LU ; Xu, Hongqi LU ; Zhang, Guoqiang ; Tateno, Kouta ; Takayanagi, Hideaki and Ishibashi, Koji (2011) In Nanotechnology 22(44).
Abstract
One-dimensional superconducting transistors have been fabricated with individual InAs nanowires (NWs) using radio-frequency sputter cleaning followed by in situ metal deposition. Because of the highly transparent contacts formed in between the InAs NWs and the metals, supercurrent, multiple Andreev reflections and Shapiro steps under microwave radiation have been observed. Near pinch-off gate regions, Fabry-Perot interference and a normal conductance quantization with resonant features have been observed, which were found to be correlated with a supercurrent flow.
Please use this url to cite or link to this publication:
author
; ; ; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nanotechnology
volume
22
issue
44
article number
445701
publisher
IOP Publishing
external identifiers
  • wos:000296749700010
  • scopus:80054954241
  • pmid:21975543
ISSN
0957-4484
DOI
10.1088/0957-4484/22/44/445701
language
English
LU publication?
yes
id
36aeda39-bd75-4549-987d-633b5404a82c (old id 2254334)
date added to LUP
2016-04-01 10:08:18
date last changed
2021-04-13 06:06:45
@article{36aeda39-bd75-4549-987d-633b5404a82c,
  abstract     = {One-dimensional superconducting transistors have been fabricated with individual InAs nanowires (NWs) using radio-frequency sputter cleaning followed by in situ metal deposition. Because of the highly transparent contacts formed in between the InAs NWs and the metals, supercurrent, multiple Andreev reflections and Shapiro steps under microwave radiation have been observed. Near pinch-off gate regions, Fabry-Perot interference and a normal conductance quantization with resonant features have been observed, which were found to be correlated with a supercurrent flow.},
  author       = {Nishio, Takahiro and Kozakai, Tatsuya and Amaha, Shinichi and Larsson, Marcus and Nilsson, Henrik and Xu, Hongqi and Zhang, Guoqiang and Tateno, Kouta and Takayanagi, Hideaki and Ishibashi, Koji},
  issn         = {0957-4484},
  language     = {eng},
  number       = {44},
  publisher    = {IOP Publishing},
  series       = {Nanotechnology},
  title        = {Supercurrent through InAs nanowires with highly transparent superconducting contacts},
  url          = {http://dx.doi.org/10.1088/0957-4484/22/44/445701},
  doi          = {10.1088/0957-4484/22/44/445701},
  volume       = {22},
  year         = {2011},
}