Boseggia, S;
Springell, R;
Walker, HC;
Ronnow, HM;
Rueegg, C;
Okabe, H;
Isobe, M;
... McMorrow, DF; + view all
(2013)
Robustness of Basal-Plane Antiferromagnetic Order and the J(eff)=1/2 State in Single-Layer Iridate Spin-Orbit Mott Insulators.
Physical Review Letters
, 110
(11)
, Article 117207. 10.1103/PhysRevLett.110.117207.
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Abstract
The magnetic structure and electronic ground state of the layered perovskite Ba 2 IrO 4 have been investigated using x-ray resonant magnetic scattering. Our results are compared with those for Sr 2 IrO 4 , 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 Ba 2 IrO 4 , 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 5 d transition metal oxides.
| Type: | Article |
|---|---|
| Title: | Robustness of Basal-Plane Antiferromagnetic Order and the J(eff)=1/2 State in Single-Layer Iridate Spin-Orbit Mott Insulators |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.110.117207 |
| Publisher version: | https://doi.org/10.1103/PhysRevLett.110.117207 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10134049 |
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