Superconducting nanowires by electron-beam-induced deposition

Journal Article · Mon Jan 26 00:00:00 EST 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4906269· OSTI ID:22415196

Sengupta, Shamashis ^[1]; Li, Chuan; Guéron, S.; Bouchiat, H. ^[2]; Baumier, Cedric; Fortuna, F. ^[1]; Kasumov, Alik ^[2]

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1. CSNSM, Univ. Paris-Sud, IN2P3, UMR 8609, F-91405 Orsay Cedex (France)
2. LPS, Univ. Paris-Sud, CNRS, UMR 8502, F-91405 Orsay Cedex (France)

Superconducting nanowires can be fabricated by decomposition of an organometallic gas using a focused beam of Ga ions. However, physical damage and unintentional doping often result from the exposure to the ion beam, motivating the search for a means to achieve similar structures with a beam of electrons instead of ions. This has so far remained an experimental challenge. We report the fabrication of superconducting tungsten nanowires by electron-beam-induced-deposition, with critical temperature of 2.0 K and critical magnetic field of 3.7 T, and compare them with superconducting wires made with ions. This work is an important development for the template-free realization of nanoscale superconducting devices, without the requirement of an ion beam column.

• OSTI ID: 22415196
• Journal Information: Applied Physics Letters, Vol. 106, Issue 4; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DEPOSITION
ELECTRON BEAMS
GALLIUM IONS
MAGNETIC FIELDS
NANOWIRES
SUPERCONDUCTING DEVICES
SUPERCONDUCTING WIRES
TEMPERATURE RANGE 0000-0013 K
TRANSITION TEMPERATURE
TUNGSTEN