TY  - JOUR
AU  - Chiang, Cheng-Tien
AU  - Ellguth, Martin
AU  - Schumann, Florian O.
AU  - Tusche, Christian
AU  - Kraska, Richard
AU  - Förster, Stefan
AU  - Widdra, Wolf
TI  - Electronic band structure of a two-dimensional oxide quasicrystal
JO  - Physical review / B
VL  - 100
IS  - 12
SN  - 2469-9950
CY  - Woodbury, NY
PB  - Inst.
M1  - FZJ-2019-05677
SP  - 125149
PY  - 2019
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000488257600003
DO  - DOI:10.1103/PhysRevB.100.125149
UR  - https://juser.fz-juelich.de/record/866596
ER  -