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 study scanning gate microscopy (SGM) conductance mapping of a$\mathrm{MoS}_2$ zigzag ribbon exploiting tight-binding and continuum models.We show that, even though the edge modes of a pristine nanoribbon are robust tobackscattering on the potential induced by the tip, the conductance mappingreveals presence of both the edge modes and the quantized spin- andvalley-current carrying modes. By inspecting the electron flow from a splitgate quantum point contact (QPC) we find that the mapped current flow allows todetermine the nature of the quantization in the QPC as spin-orbit couplingstrength affects the number of branches in which the current exits theconstriction. The radial conductance oscillation fringes found in theconductance mapping reveal the presence of two possible wavevectors for thecharge carriers that correspond to spin and valley opposite modes. Finally, weshow that disorder induced valley mixing leads to a beating pattern in theradial fringes.

journal of physics. condensed matter

Scanning gate microscopy mapping of edge current and branched electron  flow in a transition metal dichalcogenide nanoribbon and quantum point  contact