From NaSc <sub>3</sub> Ga <sub>2</sub> Q <sub>8</sub> (Q = S, Se) to KGa <sub>2</sub> In <sub>3</sub> S <sub>8</sub> : substitution of Sc <sup>3+</sup> with In <sup>3+</sup> to achieve doubled birefringence
Yun Xie, Wen‐Dong Yao, Qiu-Yang Du, Wenfeng Zhou, Nian‐Tzu Suen, Wenlong Liu, Sheng‐Ping Guo
Abstract
Three new chalcogenides, AM 5 Q 8 (A = Na, K; M = Sc, Ga and In; Q = S, Se), with a new structure feature 3 D channel-like frameworks. Substitution of Sc with In enhances the anisotropy of microscopic polarizability and achieves birefringence doubling.
Topics & Concepts
Substitution (logic)CrystallographyChemistryMaterials sciencePhysicsComputer scienceProgramming languageCrystal Structures and PropertiesSolid-state spectroscopy and crystallographyInorganic Fluorides and Related Compounds