Publications by authors named "Xiedong Cheng"
Two quaternary manganese selenites, A(MnO)(SeO) (A = K, Rb), have been synthesized by hydrothermal reactions. They both crystallize in a complex triclinic (P-1) structure built of Jahn-Teller (JT) distorted MnO octahedra, connected into nearly isosceles [MnO] triangles, themselves arranged into so-called "sawtooth (ST) chains". The K and Rb compounds show subtle variations in the orientations of the MnO planes inside the elementary triangles.
View Article and Find Full Text PDFArticle Synopsis
- The study involves the synthesis of three mixed-valence barium iron fluorides (BaFeF series) using hydrothermal redox reactions, resulting in unique structural characteristics.
- Each compound showcases different arrangements of FeF units: BaFeF features 1D infinite [FeFeF] double chains, BaFeF contains 1D [FeF] double chains, and BaFeF has a complex 3D framework with isolated FeF units.
- Magnetic studies reveal that BaFeF undergoes an antiferromagnetic phase transition at ~11 K, while BaFeF exhibits canted antiferromagnetic ordering at ~32.5 K, indicating distinct magnetic properties influenced by their structural configurations.