High-resolution angle-resolved photoemission investigation of the electronic structure of Cr-intercalated1T‐TiTe2

Abstract

We report the results of the study by angle-resolved photoelectron spectroscopy of intercalated compound Cr1/3TiTe2. In the range of binding energies up to 6 eV we obtained band mapping along -M, -M, and M -K directions of the Brillouin zone. It was established that electronic structure of TiTe2 changes substantially under the inclusion of Cr. An additional, essentially dispersionless band appears at 1 eV below the Fermi level. Band structure calculations allow one to interpret this band as being due to the Cr3d-Ti3d mixed states. An almost dispersionless character of this band allows one to presume a polaronlike nature of Cr- Ti mixed states.