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/

Zendy Plus

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

Zendy Tools

Zendy Open

In the search of topological superconductors, nailing down the Fermiology ofthe normal state is as crucial a prerequisite as unraveling the superconductingpairing symmetry. In particular, the number of time-reversal-invariant momentain the Brillouin zone enclosed by Fermi surfaces is closely linked to thetopological class of time-reversal-invariant systems, and can experimentally beinvestigated. We report here a detailed study of de Haas van Alphen quantumoscillations in single crystals of the topological semimetal CaSn$_{3}$ withtorque magnetometry in high magnetic fields up to 35 T. In conjunction withdensity functional theory based calculations, the observed quantum oscillationsfrequencies indicate that the Fermi surfaces of CaSn$_{3}$ enclose an oddnumber of time-reversal-invariant momenta, satisfying one of the proposedcriteria to realize topological superconductivity. Nonzero Berry phasesextracted from the magnetic oscillations also support the nontrivialtopological nature of CaSn$_{3}$.

Fermi surfaces of the topological semimetal CaSn$_{3}$ probed through de Haas van Alphen oscillations