Published May 30, 2016 | Version v1
Journal article Metadata-only

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

Creators

  • 1. Department of Applied Physics and Physico-Informatics, Faculty of Science and Technology, Keio University, Hiyoshi, Yokohama 223-8522 (Japan)
  • 2. International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Namiki, Tsukuba, Ibaraki 305-0044 (Japan)
  • 3. Faculty of Engineering, Gunma University, Kiryu, Gunma 376-8515 (Japan)
  • 4. Department of Mechanical Engineering, Faculty of Science and Technology, Keio University, Hiyoshi, Yokohama 223-8522 (Japan)
  • 5. Department of Electronics and Electrical Engineering, Faculty of Science and Technology, Keio University, Hiyoshi, Yokohama 223-8522 (Japan)
  • 6. JST-PRESTO, Honcho, Kawaguchi, Saitama 332-0012 (Japan)

Description

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.

Additional details

Identifiers

DOI
10.1063/1.4952721;

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
108
Journal Issue
22
Journal Page Range
vp.
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
48035283
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
CARBON NANOTUBES; DIAGRAMS; FILMS; HYBRIDIZATION; MAGNETORESISTANCE; NANOWIRES; NIOBIUM; NIOBIUM NITRIDES; ONE-DIMENSIONAL CALCULATIONS; PHOTONS; QUANTUM MECHANICS; QUBITS; SLIP; SUPERCONDUCTIVITY
Descriptors DEC
BOSONS; CARBON; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELEMENTARY PARTICLES; ELEMENTS; INFORMATION; MASSLESS PARTICLES; MECHANICS; METALS; NANOSTRUCTURES; NANOTUBES; NIOBIUM COMPOUNDS; NITRIDES; NITROGEN COMPOUNDS; NONMETALS; PHYSICAL PROPERTIES; PNICTIDES; QUANTUM INFORMATION; REFRACTORY METAL COMPOUNDS; REFRACTORY METALS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS

Optional Information

Notes
(c) 2016 Author(s)