Atomic scale crystal field mapping of polar vortices in oxide superlattices

ABSTRACT: Polar vortices in oxide superlattices exhibit complex polarization topologies. Using a combination of electron energy loss near-edge structure analysis, crystal field multiplet theory, and first-principles calculations, we probe the electronic structure within such polar vortices in [(PbTiO3)16/(SrTiO3)16] superlattices at the atomic scale. The peaks in Ti The response of the electronic structure to the non-trivial polarization texture in PbTiO3/SrTiO3 superlattices has not been explored. Here, the authors reveal how the peaks of the spectra shift and change their local electronic structure depending on the position of the Ti cation.

SUBMITTER: Susarla S 

PROVIDER: S-EPMC8560910 | biostudies-literature |

REPOSITORIES: biostudies-literature