Thermal and quantum phase slips in niobium-nitride nanowires based on suspended carbon nanotubes

Kohei Masuda, Satoshi Moriyama, Yoshifumi Morita, Katsuyoshi Komatsu, Tasuku Takagi, Takayuki Hashimoto, Norihisa Miki, Takasumi Tanabe, Hideyuki Maki

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Superconducting nanowires have attracted considerable attention due to their unique quantum-mechanical properties, as well as their potential as next-generation quantum nanodevices, such as single-photon detectors, phase-slip (PS) qubits, and other hybrid structures. In this study, we present the results of one-dimensional (1D) superconductivity in nanowires fabricated by coating suspended carbon nanotubes with a superconducting thin niobium nitride (NbN) film. In the resistance-temperature characteristic curves, hallmarks of 1D superconductivity with PS events are observed with unconventional negative magnetoresistance. We also confirm that a crossover occurs between thermal and quantum PSs as the temperature is lowered.

Original languageEnglish
Article number222601
JournalApplied Physics Letters
Volume108
Issue number22
DOIs
Publication statusPublished - 2016 May 30

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niobium
nitrides
nanowires
slip
superconductivity
carbon nanotubes
phase detectors
hybrid structures
crossovers
mechanical properties
coatings
temperature
photons
curves

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Thermal and quantum phase slips in niobium-nitride nanowires based on suspended carbon nanotubes. / Masuda, Kohei; Moriyama, Satoshi; Morita, Yoshifumi; Komatsu, Katsuyoshi; Takagi, Tasuku; Hashimoto, Takayuki; Miki, Norihisa; Tanabe, Takasumi; Maki, Hideyuki.

In: Applied Physics Letters, Vol. 108, No. 22, 222601, 30.05.2016.

Research output: Contribution to journalArticle

Masuda K, Moriyama S, Morita Y, Komatsu K, Takagi T, Hashimoto T et al. Thermal and quantum phase slips in niobium-nitride nanowires based on suspended carbon nanotubes. Applied Physics Letters. 2016 May 30;108(22). 222601. https://doi.org/10.1063/1.4952721
Masuda, Kohei ; Moriyama, Satoshi ; Morita, Yoshifumi ; Komatsu, Katsuyoshi ; Takagi, Tasuku ; Hashimoto, Takayuki ; Miki, Norihisa ; Tanabe, Takasumi ; Maki, Hideyuki. / Thermal and quantum phase slips in niobium-nitride nanowires based on suspended carbon nanotubes. In: Applied Physics Letters. 2016 ; Vol. 108, No. 22.
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