Abstract
The magnetic structure and electronic ground state of the layered perovskite Ba2IrO4 have been investigated using x-ray resonant magnetic scattering. Our results are compared with those for Sr2IrO4, for which we provide supplementary data on its magnetic structure. We find that the dominant, long-range antiferromagnetic order is remarkably similar in the two compounds and that the electronic ground state in Ba2IrO4, deduced from an investigation of the x-ray resonant magnetic scattering L-3/L-2 intensity ratio, is consistent with a J(eff) = 1/2 description. The robustness of these two key electronic properties to the considerable structural differences between the Ba and Sr analogues is discussed in terms of the enhanced role of the spin-orbit interaction in 5d transition metal oxides. DOI: 10.1103/PhysRevLett.110.117207
Original language | English |
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Article number | 117207 |
Number of pages | 5 |
Journal | Physical Review Letters |
Volume | 110 |
Issue number | 11 |
DOIs | |
Publication status | Published - 13 Mar 2013 |
Keywords
- HIGH-TEMPERATURE SUPERCONDUCTIVITY
- SR2IRO4
- PHYSICS