The electronic structure of the high-symmetry perovskite iridate Ba<sub>2</sub>IrO<sub>4</sub>
The electronic structure of the high-symmetry perovskite iridate Ba<sub>2</sub>IrO<sub>4</sub>
We report angle-resolved photoemission (ARPES) measurements, density functional and model tight-binding calculations on Ba2IrO4 (Ba-214), an antiferromagnetic (TN = 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 …