Liu Shengjie, Wang Xiao, Deng Zunyi, Ye Xubin, Pan Zhao, Lu Dabiao, Zhao Haoting, Zhang Jie, Pi Maocai, Hu Zhiwei, Chen Chien-Te, Dong Cheng, Shen Yao, Cui Tian, Huang Yanping, Hong Jiawang, Chi Zhenhua, Long Youwen
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.
Institute of High Pressure Physics, School of Physical Science and Technology, Ningbo University, Ningbo 315211, China.
Inorg Chem. 2024 Oct 21;63(42):19964-19971. doi: 10.1021/acs.inorgchem.4c03543. Epub 2024 Oct 10.
A B-site ordered double perovskite oxide CdCrSbO was synthesized under high-pressure and high-temperature conditions. The compound crystallizes to a monoclinic structure with a space group of 2/. The charge configuration is confirmed to be that of Cd/Cr/Sb. The magnetic Cr ions form a tetrahedral structural frustrated lattice, while a long-range ferromagnetic phase transition is found to occur at = 16.5 K arising from the superexchange interaction via the Cr-O-Cd-O-Cr pathway. Electrical transport measurements indicate that CdCrSbO is an insulator that can be described by the Mott 3D variable range hopping mechanism. First-principles calculations reproduce well the ferromagnetic and insulating ground state of CdCrSbO with an energy band gap of 1.55 eV. The intrinsic ferromagnetic insulating nature qualifies CdCrSbO as a promising candidate for possible spintronics applications.
