Magnetic anisotropy of the alkali iridate Na${}_2$IrO${}_3$ at high magnetic fields: evidence for strong ferromagnetic Kitaev correlations

Sitikantha. D Das, Sarbajaya Kundu, Zengwei Zhu +10

The magnetic field response of the Mott-insulating honeycomb iridate Na${}_2$IrO${}_3$ is investigated using torque magnetometry measurements in magnetic fields up to 60 tesla. A p…