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Title: Superconducting nanowires by electron-beam-induced deposition

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.
Authors:
 [1] ;  [2] ; ; ;  [3] ; ;  [1] ;  [3] ;  [4]
  1. CSNSM, Univ. Paris-Sud, IN2P3, UMR 8609, F-91405 Orsay Cedex (France)
  2. (France)
  3. LPS, Univ. Paris-Sud, CNRS, UMR 8502, F-91405 Orsay Cedex (France)
  4. (Russian Federation)
Publication Date:
OSTI Identifier:
22415196
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 4; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
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