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Gao L, Wang X, Ye X, Wang W, Liu Z, Qin S, Hu Z, Lin HJ, Weng SC, Chen CT, Ohresser P, Baudelet F, Yu R, Jin C, Long Y. Near-Room-Temperature Ferrimagnetic Ordering in a B-Site-Disordered 3d-5d-Hybridized Quadruple Perovskite Oxide, CaCu 3Mn 2Os 2O 12. Inorg Chem 2019; 58:15529-15535. [PMID: 31702150 DOI: 10.1021/acs.inorgchem.9b02576] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new 3d-5d hybridization oxide, CaCu3Mn2Os2O12 (CCMOO), was prepared by high-pressure and high-temperature synthesis methods. The compound crystallizes to an A-site-ordered but B-site-disordered quadruple perovskite structure with a space group of Im3̅ (No. 204). The charge states of the transition metals are determined to be Cu2+/Mn3.5+/Os4.5+ by X-ray absorption spectroscopy. Although most B-site-disordered perovskites possess lower spin-ordering temperatures or even nonmagnetic transitions, the current CCMOO displays a long-range ferrimagnetic phase transition with a critical temperature as high as ∼280 K. Moreover, a large saturated magnetic moment is found to occur [7.8 μB/formula units (f.u.) at 2 K]. X-ray magnetic circular dichroism shows a Cu2+(↑)Mn3.5+(↑)Os4.5+(↓) ferrimagnetic coupling. The corner-sharing Mn/OsO6 octahedra with mixed Mn and Os charge states make the compound metallic in electrical transport, in agreement with a specific heat fitting at low temperature. This work provides a rare example with high spin-ordering temperature and a large magnetic moment in B-site-disordered 3d-5d hybridization perovskite oxides.
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Affiliation(s)
- Lei Gao
- Beijing National Laboratory for Condensed Matter Physics , Institute of Physics, Chinese Academy of Sciences , Beijing 100190 , China.,School of Physical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Xiao Wang
- Beijing National Laboratory for Condensed Matter Physics , Institute of Physics, Chinese Academy of Sciences , Beijing 100190 , China.,School of Physical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Xubin Ye
- Beijing National Laboratory for Condensed Matter Physics , Institute of Physics, Chinese Academy of Sciences , Beijing 100190 , China.,School of Physical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Weipeng Wang
- Beijing National Laboratory for Condensed Matter Physics , Institute of Physics, Chinese Academy of Sciences , Beijing 100190 , China
| | - Zhehong Liu
- Beijing National Laboratory for Condensed Matter Physics , Institute of Physics, Chinese Academy of Sciences , Beijing 100190 , China.,School of Physical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Shijun Qin
- Beijing National Laboratory for Condensed Matter Physics , Institute of Physics, Chinese Academy of Sciences , Beijing 100190 , China.,School of Physical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Zhiwei Hu
- Max Planck Institute for Chemical Physics of Solids , Dresden 01187 , Germany
| | - Hong-Ji Lin
- National Synchrotron Radiation Research Center , Hsinchu 30076 , Taiwan, Republic of China
| | - Shih-Chang Weng
- National Synchrotron Radiation Research Center , Hsinchu 30076 , Taiwan, Republic of China
| | - Chien-Te Chen
- National Synchrotron Radiation Research Center , Hsinchu 30076 , Taiwan, Republic of China
| | - Philippe Ohresser
- L'Orme des Merisiers , Synchrotron SOLEIL , Saint-Aubin, Gif-sur-Yvette Cedex 91192 , France
| | - Francois Baudelet
- L'Orme des Merisiers , Synchrotron SOLEIL , Saint-Aubin, Gif-sur-Yvette Cedex 91192 , France
| | - Richeng Yu
- Beijing National Laboratory for Condensed Matter Physics , Institute of Physics, Chinese Academy of Sciences , Beijing 100190 , China.,School of Physical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Changqing Jin
- Beijing National Laboratory for Condensed Matter Physics , Institute of Physics, Chinese Academy of Sciences , Beijing 100190 , China.,School of Physical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , China.,Songshan Lake Materials Laboratory , Dongguan , Guangdong 523808 , China
| | - Youwen Long
- Beijing National Laboratory for Condensed Matter Physics , Institute of Physics, Chinese Academy of Sciences , Beijing 100190 , China.,School of Physical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , China.,Songshan Lake Materials Laboratory , Dongguan , Guangdong 523808 , China
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