Figure 3

Co Kβ X-ray emission spectra (XES) of Sr₂Co_0.5Ir_0.5O₄ and difference spectra of Co Kβ emissions between ambient pressure (AP) and 40 GPa (blue line) and between 7.6 and 40 GPa (red line). Inset: Integrated absolute difference (IAD) as a function of pressure for Sr₂Co_0.5Ir_0.5O₄.