Photoemission Studies on Intercalation Compounds of MxTiS2 (M=3d Transition Metals)

Effect of 3d transition metal intercalation into 1T-CdI 2 type TiS 2 layered crystals, expressed as M x TiS 2 (M=Mn, Fe, Co and Ni), has been studied by synchrotron radiation photoemission over the photon energy range of \(\hbar\omega=32\text{--}120\) eV. The spectra are found to depend strongly on the guest 3d metals and their conacentration. The valence bands are modified by the strong hybridization of Ti 3d, S 3p states and the guest atom 3d states, in good agreement with a theoretical prediction.