Patterning of ultrathin YBCO nanowires using a new focused-ion-beam process

Details Patterning of ultrathin YBCO nanowires using a new focused-ion-beam process Patterning of ultrathin YBCO nanowires using a new focused-ion-beam process

2010-02-03

arxiv.org/abs/1002.0808v1

Supercond. Sci. Technol. 23 045015 (2010)

Physics

Condensed Matter

Superconductivity

13 pages, 7 figures

Scientific paper

10.1088/0953-2048/23/4/045015

Manufacturing superconducting circuits out of ultrathin films is a challenging task when it comes to patterning complex compounds, which are likely to be deteriorated by the patterning process. With the purpose of developing high-T$_c$ superconducting photon detectors, we designed a novel route to pattern ultrathin YBCO films down to the nanometric scale. We believe that our method, based on a specific use of a focused-ion beam, consists in locally implanting Ga^{3+} ions and/or defects instead of etching the film. This protocol could be of interest to engineer high-T$_c$ superconducting devices (SQUIDS, SIS/SIN junctions and Josephson junctions), as well as to treat other sensitive compounds.

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