Chemical Vapor Growth and Manganese Metal Intercalation of TiS₂

Abstract

TiS₂ crystals with a 1T-CdI₂ type layered structure have been grown by a chemical vapor reaction under different conditions of transport gas, size of ampoule, and temperature. Various attempts to intercalate Mn metals into the TiS₂ layers were made using electrochemical, dipping in pyridine solution, thermal diffusion, and direct reaction methods. The EPR signals of the Mn-intercalated TiS₂ show a Mn²⁺ state with the g-value≈2 and the hyperfine structure constant A=80×10⁻⁴ cm⁻¹, indicating a strong ionic nature of the crystalline environment. A lattice expansion along the c-axis upon intercalation is discussed.