This title appears in the Scientific Report :
2019
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevB.100.125149 in citations.
Please use the identifier: http://hdl.handle.net/2128/23399 in citations.
Electronic band structure of a two-dimensional oxide quasicrystal
Electronic band structure of a two-dimensional oxide quasicrystal
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 fu...
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Personal Name(s): | Chiang, Cheng-Tien |
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Ellguth, Martin / Schumann, Florian O. / Tusche, Christian / Kraska, Richard / Förster, Stefan / Widdra, Wolf (Corresponding author) | |
Contributing Institute: |
Elektronische Eigenschaften; PGI-6 |
Published in: | Physical Review B Physical review / B, 100 100 (2019 2019) 12 12, S. 125149 125149 |
Imprint: |
Woodbury, NY
Inst.
2019
|
DOI: |
10.1103/PhysRevB.100.125149 |
Document Type: |
Journal Article |
Research Program: |
Controlling Spin-Based Phenomena |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/23399 in citations.
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. |