English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We report on the growth and characterization of ultrathinYBa$_2$Cu$_3$O$_{7-\delta}$ (YBCO) films on MgO (110) substrates, which exhibitsuperconducting properties at thicknesses down to 3 nm. YBCO nanowires, withthicknesses down to 10 nm and widths down to 65 nm, have been also successfullyfabricated. The nanowires protected by a Au capping layer show superconductingproperties close to the as-grown films, and critical current densities, whichare only limited by vortex dynamics. The 10 nm thick YBCO nanowires without theAu capping present hysteretic current voltage characteristics, characterized bya voltage switch which drives the nanowires directly from the superconductingto the normal state. Such bistability is associated in NbN nanowires to thepresence of localized normal domains within the superconductor. The presence ofthe voltage switch, in ultrathin nanostructures characterized by high sheetresistance values, though preserving high quality superconducting properties,make our nanowires very attractive devices to engineer single photon detectors.

Transport properties of ultrathin YBa$_2$Cu$_3$O$_{7-\delta}$ nanowires: a route to single photon detection