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 present simultaneous measurements of Josephson inductance and DC transportcharacteristics of ballistic Josephson junctions based upon an epitaxialAl-InAs heterostructure. The Josephson inductance at finite current biasdirectly reveals the current-phase relation. The proximity-induced gap, thecritical current and the average value of the transparency $\bar{\tau}$ areextracted without need for phase bias, demonstrating, e.g.,~a near-unity valueof $\bar{\tau}=0.94$. Our method allows us to probe the devices deeply in thenon-dissipative regime, where ordinary transport measurements are featureless.In perpendicular magnetic field the junctions show a nearly perfect Fraunhoferpattern of the critical current, which is insensitive to the value of$\bar{\tau}$. In contrast, the signature of supercurrent interference in theinductance turns out to be extremely sensitive to $\bar{\tau}$.

Josephson inductance as a probe for highly ballistic semiconductor-superconductor weak links