Superconductivity in NiTe$_{2}$ compounds interspersed with layers of Ti and Cu

NiTe$_{2}$ compound crystallizes in an hexagonal layer structure, CdI$_{2}$ prototype, where the layers of tellurium are between the layers of nickel and display some anomalies at the resistivity measurements but principally a metal-insulator like transition close to 25 K. In this work we will show that the intercalation of Copper, between Te-Te van der Waals gap displacement the metal-insulator like transition until reach an unusual metal like behavior from 2.0 K to 300 K temperature range. Another hand, Titanium intercalation between Te-Te van der Waals gap is able to induce superconductivity behavior with superconducting critical temperature close to 4.1 K, sustained by resistivity and magnetization measurements.