Co3(SeO3)(SO4)(OH)2: A Selenite-Sulfate Compound with a Distorted Kagomé Lattice

Mengsi Zhang; Yujie Song; Zhiying Zhao; Jinyang Li; Wanwan Zhang; Yaxin Xie; Xing Huang; Xiaoying Huang; Zhangzhen He

doi:10.1021/acs.inorgchem.0c00316

Co₃(SeO₃)(SO₄)(OH)₂: A Selenite-Sulfate Compound with a Distorted Kagomé Lattice

Inorg Chem. 2020 Jun 15;59(12):8054-8060. doi: 10.1021/acs.inorgchem.0c00316. Epub 2020 May 27.

Authors

Mengsi Zhang^{1

2}, Yujie Song³, Zhiying Zhao¹, Jinyang Li¹, Wanwan Zhang^{1

2}, Yaxin Xie^{1

2}, Xing Huang¹, Xiaoying Huang¹, Zhangzhen He¹

Affiliations

¹ State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China.
² University of Chinese Academy of Sciences, Beijing 100049, P. R. China.
³ Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan 430074, P. R. China.

PMID: 32458677
DOI: 10.1021/acs.inorgchem.0c00316

Abstract

A new selenite-sulfate compound Co₃(SeO₃)(SO₄)(OH)₂ was prepared using a typical hydrothermal reaction. This compound is found to crystallize in an orthorhombic space group of Pnma, featuring a 2D distorted kagomé structure composed of linear and zigzag Co-chains, in which the magnetic ions construct different isosceles-triangles. Our results of magnetic and specific heat measurements confirm a canted antiferromagnetic order at T_N ∼ 29 K. Further, the successive field-induced metamagnetic transitions can be observed at H_c1 ∼ 1 T, H_c2 ∼ 23 T, and H_c3 ∼ 27 T, respectively. A clear magnetic hysteresis loop with a coercive field (H_c) of ∼1.4 T is also observed.