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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We report the detailed electronic structure of WTe$_2$ by high resolutionangle-resolved photoemission spectroscopy. Unlike the simple one electron plusone hole pocket type of Fermi surface topology reported before, we resolved arather complicated Fermi surface of WTe$_2$. Specifically, there are totallynine Fermi pockets, including one hole pocket at the Brillouin zone center$\Gamma$, and two hole pockets and two electron pockets on each side of$\Gamma$ along the $\Gamma$-$X$ direction. Remarkably, we have observedcircular dichroism in our photoemission spectra, which suggests that theorbital angular momentum exhibits a rich texture at various sections of theFermi surface. As reported previously for topological insulators and Rashibasystems, such a circular dichroism is a signature for spin-orbital coupling(SOC). This is further confirmed by our density functional theory calculations,where the spin texture is qualitatively reproduced as the conjugate consequenceof SOC. Since the backscattering processes are directly involved with theresistivity, our data suggest that the SOC and the related spin and orbitalangular momentum textures may be considered in the understanding of theanomalous magnetoresistance of WTe$_2$.

Signature of strong spin-orbital coupling in the large non-saturating magnetoresistance material WTe2