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High-pressure synthesis and spin glass behavior of a Mn/Ir disordered quadruple perovskite CaCu<sub>3</sub>Mn<sub>2</sub>Ir<sub>2</sub>O<sub>12</sub>
A new 3d-5d hybridized quadruple perovskite oxide, CaCu3Mn2Ir2O12, was synthesized by high-pressure and high-temperature methods. The Rietveld structure analysis reveals that the compound crystallizes in an -type perovskite structure with space group Im-3, where the Ca and Cu are 1:3 ordered at fixed atomic positions. At the B site the …