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Resonant valence-band X-ray photoelectron spectra (ResPES) excited near2p$_{3/2}$ core level energies, 2p X-ray photoelectron spectra (XPS) andL$_{3,2}$ X-ray absorption spectra (XAS) of Ti and Mn in single crystal of1T-Mn$_2$TiSe$_2$ were studied for the first time. The ionic-covalent characterof bonds formed by Mn atoms with the neighboring Se atoms in the octahedralcoordination is established. From the XPS and XAS measurements compared withresults of atomic multiplet calculations of Ti and Mn L$_{3,2}$ XAS it is foundthat Ti atoms are in ionic state of 4+ and Mn atoms are in the state of 2+. InResPES of Mn$_{0.2}$TiSe$_2$ excited near Ti 2p$_{3/2}$ and Mn 2p$_{3/2}$absorption edges the Ti 3d and Mn 3d bands at binding energies just below theFermi level are observed. According to band structure calculationsE$(\textbf{k})$ the Ti 3d states are localized in the vicinity of$\mathsf{\Gamma}$ point and the Mn 3d states are localized along the directionK-$\mathsf{\Gamma}$-M in the Brillouin zone of the crystal.

Resonant photoemission at the absorption edge of Mn and Ti and electronic structure of 1T-Mn$_{0.2}$TiSe$_2$