Neutron powder diffraction study of Ba3ZnRu2-xIrxO9 (x = 0, 1, 2) with 6H-type perovskite structure

• The triple perovskites Ba3ZnRu2-xIrxO9 (x = 0, 1, and 2) were investigated by NPD.
• No long-range magnetic order could be detected down to 10 K for any of the samples.
• Structural and polyhedral properties were investigated in detail.

The triple perovskites Ba3ZnRu2-xIrxO9 with x = 0, 1, and 2 are insulating compounds in which Ru(Ir) cations form a dimer state. Polycrystalline samples of these materials were studied using neutron powder diffraction (NPD) at 10 and 295 K. No structural transition nor evidence of long range magnetic order was observed within the investigated temperature range. The results from structural refinements of the NPD data and its polyhedral analysis are presented, and discussed as a function of Ru/Ir content.

Figure optionsDownload as PowerPoint slide