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

The discovery of signatures of topological superconductivity insuperconducting bulk materials with topological surface states has attractedintensive research interests recently. Utilizing angle-resolved photoemissionspectroscopy and first-principles calculations, here, we demonstrate theexistence of topological nodal-line states and drumheadlike surface states incentrosymmetric superconductor SnTaS2, which is a type-II superconductor with acritical transition temperature of about 3 K. The valence bands from Ta 5dorbitals and the conduction bands from Sn 5p orbitals cross each other, formingtwo nodal lines in the vicinity of the Fermi energy without the inclusion ofspin-orbit coupling (SOC), protected by the spatial-inversion symmetry andtime-reversal symmetry. The nodal lines are gapped out by SOC. The drumheadlikesurface states, the typical characteristics in nodal-line semimetals, are quitevisible near the Fermi level. Our findings indicate that SnTaS2 offers apromising platform for exploring the exotic properties of the topologicalnodal-line fermions and gives a help to study topological superconductivity.

Evidence of topological nodal lines and surface states in the centrosymmetric superconductor SnTaS2