x ray absorption fine structure (XAFS: combined XANES and EXAFS) Ba3MIr2O9 (M...

The 6H-hexagonal perovskite iridates Ba3M4+Ir2O9 with Ir4+ ions located on the vertices of a triangular lattice have been serving as potential paradigm in search for novel...6H型六方钙钛矿（hexagonal perovskite）铱酸盐Ba₃M⁴⁺Ir₂O₉中的四价铱离子（Ir⁴+）位于三角晶格（triangular lattice）顶点，该材料长期以来一直作为探寻新型体系的潜在研究范式。