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

Differential resistance measurements are conducted for point contacts (PCs)between tungsten tip approaching along the $c$ axis direction and the $ab$plane of Sr$_{2}$RuO$_{4}$ single crystal. Three key features are found.Firstly, within 0.2 mV there is a dome like conductance enhancement due toAndreev reflection at the normal-superconducting interface. By pushing the Wtip further, the conductance enhancement increases from 3\% to more than 20\%,much larger than that was previously reported, probably due to the pressureexerted by the tip. Secondly, there are also superconducting like features atbias higher than 0.2 mV which persists up to 6.2 K, resembling the enhancedsuperconductivity under uniaxial pressure for bulk Sr$_{2}$RuO$_{4}$ crystalsbut more pronounced here. Third, the logarithmic background can be fitted withthe Altshuler-Aronov theory of tunneling into quasi two dimensional electronsystem, consistent with the highly anisotropic electronic system inSr$_{2}$RuO$_{4}$.

Enhanced superconductivity at the interface of W/Sr$_{2}$RuO$_{4}$ point contact