Superconducting nanowires by electron-beam-induced deposition

Abstract

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 results 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 opens up new possibilities for the realization of nanoscale superconducting devices, without the requirement of an ion beam column.

arXiv comment5 pages, 4 figures

References in corpus (6)

• Direct observation of melting in a 2-D superconducting vortex lattice
• Focused-ion-beam-induced deposition of superconducting nanowires
• Nanoscale superconducting properties of amorphous W-based deposits grown with focused-ion-beam
• Proximity Effect in a Superconductor-Metallofullerene-Superconductor Molecular Junction
• Geometry-related magnetic interference patterns in long SNS Josephson junctions
• Josephson effect in $CeCoI{n}_5$ microbridges as seen via quantum interferometry

Cited by in corpus (6)

• Focused electron beam induced deposition meets materials science
• High Kinetic Inductance Microwave Resonators Made by He-Beam Assisted Deposition of Tungsten Nanowires
• Multiscale simulation of the focused electron beam induced deposition process
• Superconductivity in nanocrystalline tungsten thin films growth by sputtering in a nitrogen-argon mixture
• Reduction of microwave loss by mobile fluxons in grooved Nb films
• Formation of tungsten carbide by focused ion beam process: A route to high magnetic field resilient patterned superconducting nanostructures