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 electronic structure of Na2Ti2Sb2O, a parent compound of the newlydiscovered titanium-based oxypnictide superconductors, is studied by photonenergy and polarization dependent angle-resolved photoemission spectroscopy(ARPES). The obtained band structure and Fermi surface agree well with the bandstructure calculation of Na2Ti2Sb2O in the non-magnetic state, which indicatingthat there is no magnetic order in Na2Ti2Sb2O and the electronic correlation isweak. Polarization dependent ARPES results suggest the multi-band andmulti-orbital nature of Na2Ti2Sb2O. Photon energy dependent ARPES resultssuggest that the electronic structure of Na2Ti2Sb2O is rather two-dimensional.Moreover, we find a density wave energy gap forms below the transitiontemperature and reaches 65 meV at 7 K, indicating that Na2Ti2Sb2O is likely aweakly correlated CDW material in the strong electron-phonon interactionregime.

Photoemission study of the electronic structure and charge density waves of Na2Ti2Sb2O