The electronic structure of the high-symmetry perovskite iridate Ba2IrO4
SCIE
SCOPUS
- Title
- The electronic structure of the high-symmetry perovskite iridate Ba2IrO4
- Authors
- Moser, S; Moreschini, L; Ebrahimi, A; Dalla Piazza, B; Isobe, M; Okabe, H; Akimitsu, J; Mazurenko, VV; Kim, KS; Bostwick, A; Rotenberg, E; Chang, J; Ronnow, HM; Grioni, M
- Date Issued
- 2014-01-09
- Publisher
- IOP Publishing
- Abstract
- We report angle-resolved photoemission (ARPES) measurements, density functional and model tight-binding calculations on Ba2IrO4 (Ba-214), an antiferromagnetic (T-N = 230 K) insulator. Ba-214 does not exhibit the rotational distortion of the IrO6 octahedra that is present in its sister compound Sr2IrO4 (Sr-214), and is therefore an attractive reference material to study the electronic structure of layered iridates. We find that the band structures of Ba-214 and Sr214 are qualitatively similar, hinting at the predominant role of the spin-orbit interaction in these materials. Temperature-dependent ARPES data show that the energy gap persists well above TN, and favor a Mott over a Slater scenario for this compound.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/11817
- DOI
- 10.1088/1367-2630/16/1/013008
- ISSN
- 1367-2630
- Article Type
- Article
- Citation
- NEW JOURNAL OF PHYSICS, vol. 16, 2014-01-09
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