SULFUR K-EDGE X-RAY-ABSORPTION STUDY OF THE CHARGE-TRANSFER UPON LITHIUM INTERCALATION INTO TITANIUM DISULFIDE

Sulfur K-edge x-ray-absorption spectra have been recorded for lithium intercalated titanium disulfides LixTiS2. The near-edge features up to 30 eV above threshold are interpreted in the framework of full multip le-scattering theory. We show that the electrons transferred from inte rcalated lithium atoms are not only located on Ti 3d orbitals, as prev iously assumed, but also on the S 3p states. For comparison, we presen t the S p-projected density of states derived from linear muffin-tin-o rbital band structure calculations. An overall agreement between measu rement and theory is very well achieved.