%0 Journal Article
%A Chiang, Cheng-Tien
%A Ellguth, Martin
%A Schumann, Florian O.
%A Tusche, Christian
%A Kraska, Richard
%A Förster, Stefan
%A Widdra, Wolf
%T Electronic band structure of a two-dimensional oxide quasicrystal
%J Physical review / B
%V 100
%N 12
%@ 2469-9950
%C Woodbury, NY
%I Inst.
%M FZJ-2019-05677
%P 125149
%D 2019
%X The valence band electronic structure of a BaTiO3-derived oxide quasicrystal (OQC) is studied by photoemission using momentum microscopy. An upward-dispersive O2p band is identified, and it can be assigned to a combination of in-plane orbitals according to the symmetry and the overlap of the wave functions. In addition, the signature of Ti3d states near the Fermi level is observed, which results in a metallic character of the OQC with 3d1 occupation. Our experiments reveal two-dimensional electronic states within the OQC based on a symmetry-adapted decomposition of photoelectron intensity distribution in the momentum space.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000488257600003
%R 10.1103/PhysRevB.100.125149
%U https://juser.fz-juelich.de/record/866596