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 present a spatial and wave-vector resolved study of the electronicstructure of micron sized ferroelectric domains at the surface of a BaTiO3(001)single crystal. The n-type doping of the BaTiO3 is controlled by in-situ vacuumand oxygen annealing, providing experimental evidence of a surfaceparaelectric-ferroelectric transition below a critical doping level. Real spaceimaging of photoemission threshold, core level and valence band spectra showcontrast due to domain polarization. Reciprocal space imaging of the electronicstructure using linearly polarized light provides unambiguous evidence for thepresence of both in and out-of plane polarization with two and fourfoldsymmetry, respectively. The results agree well with first principlescalculations.

Polarization sensitive surface band structure of doped BaTiO3(001)