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Studying the electronic structure of Cr x Ti1−xSe2 by X-ray resonance and absorption spectroscopy

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Abstract

Cr x Ti1 − xSe2 (x = 0–0.83) solid solutions have been synthesized. Single crystals have been grown in the range of concentrations x = 0–0.83. Structural studies of samples have revealed that chromium atoms substitute titanium in the TiSe2 matrix. The X-ray photoelectron spectra of the core levels, the resonance spectra of the valence bands in 1T-Cr x Ti1 − xSe2, and the X-ray absorption spectra of titanium and chromium are studied. The titanium and chromium atoms are shown to have oxidation numbers of +4 and +3, respectively, in an identical octahedral environment. The local density of chromium states has been calculated. The results of the calculation agree well with the experimental data and indicate that the electronic 3d states of chromium substituting titanium in the matrix are spin-polarized and the density of chromium states is halfmetal magnet in behavior.

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Authors and Affiliations

  1. Institute of Metal Physics, Russian Academy of Sciences, Ural Branch, Yekaterinburg, 620990, Russia

    A. S. Shkvarin, Yu. M. Yarmoshenko, N. A. Skorikov, A. I. Merentsov & A. N. Titov

  2. Institute of Organic Synthesis, Russian Academy of Sciences, Ural Branch, Yekaterinburg, 620173, Russia

    P. A. Slepukhin

  3. Helmholtz-Zentrum Berlin für Materialien und Energie, BESSY II, S-12489, Berlin, Germany

    D. E. Marchenko & M. Sperling

Authors
  1. A. S. Shkvarin
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  2. Yu. M. Yarmoshenko
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  3. N. A. Skorikov
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  4. A. I. Merentsov
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  5. A. N. Titov
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  6. P. A. Slepukhin
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  7. D. E. Marchenko
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  8. M. Sperling
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Correspondence to A. S. Shkvarin.

Additional information

Original Russian Text © A.S. Shkvarin, Yu.M. Yarmoshenko, N.A. Skorikov, A.I. Merentsov, A.N. Titov, P.A. Slepukhin, D.E. Marchenko, M. Sperling, 2011, published in Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2011, Vol. 139, No. 1, pp. 101–109.

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Shkvarin, A.S., Yarmoshenko, Y.M., Skorikov, N.A. et al. Studying the electronic structure of Cr x Ti1−xSe2 by X-ray resonance and absorption spectroscopy. J. Exp. Theor. Phys. 112, 87–93 (2011). https://doi.org/10.1134/S1063776110061172

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  • DOI: https://doi.org/10.1134/S1063776110061172

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