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Title: Resonance photoelectron spectroscopy of TiX{sub 2} (X = S, Se, Te) titanium dichalcogenides

Abstract

The photoelectron valence band spectra of TiS{sub 2}, TiSe{sub 2}, and TiTe{sub 2} dichalcogenides are investigated in the Ti 2p-3d resonance regime. Resonance bands in the vicinity of the Fermi energy are found for TiS{sub 2} and TiTe{sub 2}. The nature of these bands is analyzed based on model calculations of the density of electronic states in TiS{sub 2}, TiSe{sub 2}, and TiTe{sub 2} compounds intercalated by titanium atoms. Analysis of experimental data and their comparison with model calculations showed that these bands have different origins. It is found that the resonance enhancement of an additional band observed in TiS{sub 2} is explained by self-intercalation by titanium during the synthesis of this compound. The resonance enhancement in TiTe{sub 2} is caused by occupation of the 3d band in Ti.

Authors:
; ;  [1];  [2]; ; ;  [1]
  1. Russian Academy of Sciences, Institute of Metal Physics, Ural Division (Russian Federation)
  2. Sincrotrone Trieste SCp A (Italy)
Publication Date:
OSTI Identifier:
22069271
Resource Type:
Journal Article
Journal Name:
Journal of Experimental and Theoretical Physics
Additional Journal Information:
Journal Volume: 115; Journal Issue: 5; Other Information: Copyright (c) 2012 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7761
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COMPARATIVE EVALUATIONS; ELECTRON SPECTRA; ENERGY-LEVEL DENSITY; PHOTOELECTRON SPECTROSCOPY; RESONANCE; SYNTHESIS; TITANIUM; TITANIUM SELENIDES; TITANIUM SULFIDES; TITANIUM TELLURIDES; VALENCE

Citation Formats

Shkvarin, A. S., E-mail: shkvarin@ifmlrs.uran.ru, Yarmoshenko, Yu. M., Skorikov, N. A., Yablonskikh, M. V., Merentsov, A. I., Shkvarina, E. G., and Titov, A. N. Resonance photoelectron spectroscopy of TiX{sub 2} (X = S, Se, Te) titanium dichalcogenides. United States: N. p., 2012. Web. doi:10.1134/S1063776112100159.
Shkvarin, A. S., E-mail: shkvarin@ifmlrs.uran.ru, Yarmoshenko, Yu. M., Skorikov, N. A., Yablonskikh, M. V., Merentsov, A. I., Shkvarina, E. G., & Titov, A. N. Resonance photoelectron spectroscopy of TiX{sub 2} (X = S, Se, Te) titanium dichalcogenides. United States. doi:10.1134/S1063776112100159.
Shkvarin, A. S., E-mail: shkvarin@ifmlrs.uran.ru, Yarmoshenko, Yu. M., Skorikov, N. A., Yablonskikh, M. V., Merentsov, A. I., Shkvarina, E. G., and Titov, A. N. Thu . "Resonance photoelectron spectroscopy of TiX{sub 2} (X = S, Se, Te) titanium dichalcogenides". United States. doi:10.1134/S1063776112100159.
@article{osti_22069271,
title = {Resonance photoelectron spectroscopy of TiX{sub 2} (X = S, Se, Te) titanium dichalcogenides},
author = {Shkvarin, A. S., E-mail: shkvarin@ifmlrs.uran.ru and Yarmoshenko, Yu. M. and Skorikov, N. A. and Yablonskikh, M. V. and Merentsov, A. I. and Shkvarina, E. G. and Titov, A. N.},
abstractNote = {The photoelectron valence band spectra of TiS{sub 2}, TiSe{sub 2}, and TiTe{sub 2} dichalcogenides are investigated in the Ti 2p-3d resonance regime. Resonance bands in the vicinity of the Fermi energy are found for TiS{sub 2} and TiTe{sub 2}. The nature of these bands is analyzed based on model calculations of the density of electronic states in TiS{sub 2}, TiSe{sub 2}, and TiTe{sub 2} compounds intercalated by titanium atoms. Analysis of experimental data and their comparison with model calculations showed that these bands have different origins. It is found that the resonance enhancement of an additional band observed in TiS{sub 2} is explained by self-intercalation by titanium during the synthesis of this compound. The resonance enhancement in TiTe{sub 2} is caused by occupation of the 3d band in Ti.},
doi = {10.1134/S1063776112100159},
journal = {Journal of Experimental and Theoretical Physics},
issn = {1063-7761},
number = 5,
volume = 115,
place = {United States},
year = {2012},
month = {11}
}