Department of Chemistry and Materials Science, Aalto University, FI-00076 Espoo, Finland.
Centro Brasileiro de Pesquisas Físicas (CBPF), Rua Dr Xavier Sigaud 150, Urca, Rio de Janeiro 22290-180, Brazil and Technische Universität Darmstadt, Institut für Materialwissenschaft, Fachgebiet Materialdesign durch Synthese, Alarich-Weiss-Straße 2, 64287 Darmstadt, Germany.
Chem Commun (Camb). 2019 Jan 25;55(8):1132-1135. doi: 10.1039/c8cc09479a. Epub 2019 Jan 10.
The isostructural double perovskites BaCuTeO and BaCuWO are shown by theory and experiment to be frustrated square-lattice antiferromagnets with opposing dominant magnetic interactions. This is driven by differences in orbital hybridisation of Te and W. A spin-liquid-like ground state is predicted for BaCu(TeW)O solid solution similar to recent observations in SrCu(TeW)O.
理论和实验表明，同构双钙钛矿 BaCuTeO 和 BaCuWO 是具有相反主导磁相互作用的受挫方晶格反铁磁体。这是由 Te 和 W 的轨道杂化差异驱动的。预测 BaCu(TeW)O 固溶体具有类似于最近在 SrCu(TeW)O 中观察到的类似自旋液体的基态。
