Novel transition metal tellurite sulfate compound shows significant magnetic frustration, indicating unique properties.
A novel transition metal tellurite sulfate compound, Ag2Cu6(Te2O5)2(TeO3)2(SO4)3·H2O, was hydrothermally synthesized. It crystallizes in the monoclinic space group C2/c. The structural core features a quasi-one-dimensional zigzag copper chain, which is formed by connecting S-shaped pentamers consisting of edge-shared CuO5 square pyramids through corner-sharing with elongated CuO6 octahedra. These chains are anchored by S1O4 tetrahedra and interconnected via TeO32–/Te2O52– groups and Ag+ ions. Magnetic measurements reveal long-range antiferromagnetic ordering at TN ≈ 7.2 K, as supported by a λ-type peak in the heat capacity. The large negative Weiss temperature (θCW = −113.16 K) and high magnetic frustration factor (f ≈ 15.7) reveal strong AFM coupling among neighboring Cu2+ ions and significant magnetic frustration. Field-induced spin-reorientation transitions are observed exclusively along the easy magnetization axes (the b- and a-axes), whereas along the hard magnetic axis (the c-axis), the magnetization exhibits a perfectly linear response with no such transition.
No takes yet. Share an insight, caveat, or question.
Wang et al. (2026) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: