High-Pressure Synthesis of Quadruple Perovskite Oxide CaCu3Cr2Re2O12 with a 
High Ferrimagnetic Curie Temperature

Zhang, Jie; Liu, Zhehong; Ye, Xubin; Wang, Xiao; Lu, Dabiao; Zhao, Haoting; Pi, Maocai; Chen, Chien-Te; Chen, Jeng-Lung; Kuo, Chang-Yang; Hu, Zhiwei; Yu, Xiaohui; Zhang, Xueqiang; Pan, Zhao; Long, Youwen

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High-Pressure Synthesis of Quadruple Perovskite Oxide CaCu₃Cr₂Re₂O₁₂ with a High Ferrimagnetic Curie Temperature

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Hu, Zhiwei
Zhiwei Hu, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Zhang, J., Liu, Z., Ye, X., Wang, X., Lu, D., Zhao, H., et al. (2024). High-Pressure Synthesis of Quadruple Perovskite Oxide CaCu₃Cr₂Re₂O₁₂ with a High Ferrimagnetic Curie Temperature. Inorganic Chemistry, 63(7), 3499-3505. Retrieved from https://doi.org/10.1021/acs.inorgchem.3c04243.

Cite as: https://hdl.handle.net/21.11116/0000-000F-6C4B-5

Abstract

An AA’3B2B’2O12-type quadruple perovskite oxide of CaCu3Cr2Re2O12 was synthesized at 18 GPa and 1373 K. Both an A- and B-site ordered quadruple perovskite crystal structure was observed, with the space group Pn-3. The valence states are verified to be CaCu32+Cr23+Re25+O12 by bond valence sum calculations and synchrotron X-ray absorption spectroscopy. The spin interaction among Cu2+, Cr3+, and Re5+ generates a ferrimagnetic transition with the Curie temperature (TC) at about 360 K. Moreover, electric transport properties and specific heat data suggest the presence of a half-metallic feature for this compound. The present study provides a promising quadruple perovskite oxide with above-room-temperature ferrimagnetism and possible half-metallic properties, which shows potential in the usage of spintronic devices.