Suspended superconducting weak links from aerosol-synthesized single-walled carbon nanotubes

Jukka Pekka Kaikkonen; Abhilash Thanniyil Sebastian; Patrik Laiho; Nan Wei; Marco Will; Yongping Liao; Esko I. Kauppinen; Pertti J. Hakonen

doi:10.1007/s12274-020-3032-1

Suspended superconducting weak links from aerosol-synthesized single-walled carbon nanotubes

Jukka Pekka Kaikkonen^*, Abhilash Thanniyil Sebastian, Patrik Laiho, Nan Wei, Marco Will, Yongping Liao, Esko I. Kauppinen, Pertti J. Hakonen

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

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Abstract

We report a new scheme for fabrication of clean, suspended superconducting weak links from pristine single-walled carbon nanotubes (SWCNT). The SWCNTs were grown using the floating-catalyst chemical vapour deposition (FC-CVD) and directly deposited on top of prefabricated superconducting molybdenum-rhenium (MoRe) electrodes by thermophoresis at nearly ambient conditions. Transparent contacts to SWCNTs were obtained by vacuum-annealing the devices at 900 °C, which enabled proximity-induced supercurrents up to 53 nA. SWCNT weak links fabricated on MoRe/palladium bilayer sustained supercurrents up to 0.4 nA after annealing at relatively low temperature of 220 °C. The fabrication process does neither expose SWCNTs to lithographic chemicals, nor the contact electrodes to the harsh conditions of in situ CVD growth. Our scheme facilitates new experimental possibilities for hybrid superconducting devices. [Figure not available: see fulltext.]

Original language	English
Journal	Nano Research
DOIs	https://doi.org/10.1007/s12274-020-3032-1
Publication status	E-pub ahead of print - 2020
MoE publication type	A1 Journal article-refereed

Keywords

carbon nanotube
electrical transport
floating catalyst chemical vapour deposition
Josephson junction
thermophoresis

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10.1007/s12274-020-3032-1

Kaikkonen2020_Article_SuspendedSuperconductingWeakLiFinal published version, 2.04 MBLicence: CC BY

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BOLOSO: Ultrasensitive bolometers for security applications
Tomi, M., Hakonen, P., Suresh, K., Zeng, W., Perelshtein, M., Kamada, M., Manninen, J., Kumar, M. & Will, M.
01/01/2018 → 31/12/2021
Project: Academy of Finland: Other research funding
QuDeT: Quantum devices in topological matter: carbon nanotubes, graphene, and novel superfluids
Thanniyil Sebastian, A., Kaikkonen, J., Kamada, M., Manninen, J., Tan, Z., Will, M., Todoshchenko, I., Hakonen, P., Zavyalov, V., Sergeicheva, E., Song, X., Kumar, M., Pandey, P., Korhonen, K., Haque, M., Perelshtein, M., Kirsanov, N. & Tong, F.
05/11/2015 → 31/12/2021
Project: EU: ERC grants
Finnish Centre of Excellence in Quantum Technology
Hakonen, P., Suresh, K. & Kumar, M.
01/01/2018 → 31/12/2020
Project: Academy of Finland: Other research funding

OtaNano
Anna Rissanen (Manager)
Aalto University
Facility/equipment: Facility
OtaNano – Low Temperature Laboratory
Pertti Hakonen (Manager)
Department of Applied Physics
Facility/equipment: Facility
OtaNano - Nanofab
Päivikki Repo (Manager)
School of Electrical Engineering
Facility/equipment: Facility

Cite this

@article{e1acbfea773d40e5948c3b7201500abf,

title = "Suspended superconducting weak links from aerosol-synthesized single-walled carbon nanotubes",

abstract = "We report a new scheme for fabrication of clean, suspended superconducting weak links from pristine single-walled carbon nanotubes (SWCNT). The SWCNTs were grown using the floating-catalyst chemical vapour deposition (FC-CVD) and directly deposited on top of prefabricated superconducting molybdenum-rhenium (MoRe) electrodes by thermophoresis at nearly ambient conditions. Transparent contacts to SWCNTs were obtained by vacuum-annealing the devices at 900 °C, which enabled proximity-induced supercurrents up to 53 nA. SWCNT weak links fabricated on MoRe/palladium bilayer sustained supercurrents up to 0.4 nA after annealing at relatively low temperature of 220 °C. The fabrication process does neither expose SWCNTs to lithographic chemicals, nor the contact electrodes to the harsh conditions of in situ CVD growth. Our scheme facilitates new experimental possibilities for hybrid superconducting devices. [Figure not available: see fulltext.]",

keywords = "carbon nanotube, electrical transport, floating catalyst chemical vapour deposition, Josephson junction, thermophoresis",

author = "Kaikkonen, {Jukka Pekka} and Sebastian, {Abhilash Thanniyil} and Patrik Laiho and Nan Wei and Marco Will and Yongping Liao and Kauppinen, {Esko I.} and Hakonen, {Pertti J.}",

note = "| openaire: EC/H2020/670743/EU//QuDeT ",

year = "2020",

doi = "10.1007/s12274-020-3032-1",

language = "English",

journal = "Nano Research",

issn = "1998-0124",

publisher = "Press of Tsinghua University",

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TY - JOUR

T1 - Suspended superconducting weak links from aerosol-synthesized single-walled carbon nanotubes

AU - Kaikkonen, Jukka Pekka

AU - Sebastian, Abhilash Thanniyil

AU - Laiho, Patrik

AU - Wei, Nan

AU - Will, Marco

AU - Liao, Yongping

AU - Kauppinen, Esko I.

AU - Hakonen, Pertti J.

N1 - | openaire: EC/H2020/670743/EU//QuDeT

PY - 2020

Y1 - 2020

N2 - We report a new scheme for fabrication of clean, suspended superconducting weak links from pristine single-walled carbon nanotubes (SWCNT). The SWCNTs were grown using the floating-catalyst chemical vapour deposition (FC-CVD) and directly deposited on top of prefabricated superconducting molybdenum-rhenium (MoRe) electrodes by thermophoresis at nearly ambient conditions. Transparent contacts to SWCNTs were obtained by vacuum-annealing the devices at 900 °C, which enabled proximity-induced supercurrents up to 53 nA. SWCNT weak links fabricated on MoRe/palladium bilayer sustained supercurrents up to 0.4 nA after annealing at relatively low temperature of 220 °C. The fabrication process does neither expose SWCNTs to lithographic chemicals, nor the contact electrodes to the harsh conditions of in situ CVD growth. Our scheme facilitates new experimental possibilities for hybrid superconducting devices. [Figure not available: see fulltext.]

AB - We report a new scheme for fabrication of clean, suspended superconducting weak links from pristine single-walled carbon nanotubes (SWCNT). The SWCNTs were grown using the floating-catalyst chemical vapour deposition (FC-CVD) and directly deposited on top of prefabricated superconducting molybdenum-rhenium (MoRe) electrodes by thermophoresis at nearly ambient conditions. Transparent contacts to SWCNTs were obtained by vacuum-annealing the devices at 900 °C, which enabled proximity-induced supercurrents up to 53 nA. SWCNT weak links fabricated on MoRe/palladium bilayer sustained supercurrents up to 0.4 nA after annealing at relatively low temperature of 220 °C. The fabrication process does neither expose SWCNTs to lithographic chemicals, nor the contact electrodes to the harsh conditions of in situ CVD growth. Our scheme facilitates new experimental possibilities for hybrid superconducting devices. [Figure not available: see fulltext.]

KW - carbon nanotube

KW - electrical transport

KW - floating catalyst chemical vapour deposition

KW - Josephson junction

KW - thermophoresis

UR - http://www.scopus.com/inward/record.url?scp=85090186071&partnerID=8YFLogxK

U2 - 10.1007/s12274-020-3032-1

DO - 10.1007/s12274-020-3032-1

M3 - Article

AN - SCOPUS:85090186071

JO - Nano Research

JF - Nano Research

SN - 1998-0124

ER -

Suspended superconducting weak links from aerosol-synthesized single-walled carbon nanotubes

Abstract

Keywords

Access to Document

BOLOSO: Ultrasensitive bolometers for security applications

QuDeT: Quantum devices in topological matter: carbon nanotubes, graphene, and novel superfluids

Finnish Centre of Excellence in Quantum Technology

OtaNano

OtaNano – Low Temperature Laboratory

OtaNano - Nanofab

Cite this