Sr2IrO4 has new excitation such as spin-orbit exciton excitation and spin-hole excitation. The research team identified Fano resonance, which is a type of resonant scattering phenomenon that gives rise to an asymmetric line-shape. Understanding this resonance allows researchers to better understand properties of iridium oxide.
The paper, “Magnetic Couplings, Optical Spectra, and Spin-Orbit Exciton in 5d Electron Mott Insulator Sr2IrO4,” was published by Physical Review Letters on Oct 17.
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