We report the direct observation of the density-of-states changes near the Fermi level associated with the charge- density-wave-like lattice instability in TiSe,. Synchrotron-radiation photoemission spectra have been taken below and above the critical temperature on highly stoichiometric TiSe,. The changes in the spectra due to the phase transition have been analyzed in terms of several different models of the corresponding changes in the electronic structure. The best agreement with the experimental results is given by models in which a large gap is created upon interaction between overlapping p and d bands at the Fermi level.

Density-of-states changes near the Fermi level and the lattice instability in TiSe_2 / G., Margaritondo; Bertoni, Carlo Maria; J. H., Weaver; F., Levy; N. G., Stoffel; A. D., Katnani. - In: PHYSICAL REVIEW. B, CONDENSED MATTER. - ISSN 0163-1829. - STAMPA. - 23:(1981), pp. 3765-3769. [10.1103/PhysRevB.23.3765]

Density-of-states changes near the Fermi level and the lattice instability in TiSe_2

BERTONI, Carlo Maria;
1981

Abstract

We report the direct observation of the density-of-states changes near the Fermi level associated with the charge- density-wave-like lattice instability in TiSe,. Synchrotron-radiation photoemission spectra have been taken below and above the critical temperature on highly stoichiometric TiSe,. The changes in the spectra due to the phase transition have been analyzed in terms of several different models of the corresponding changes in the electronic structure. The best agreement with the experimental results is given by models in which a large gap is created upon interaction between overlapping p and d bands at the Fermi level.
1981
23
3765
3769
Density-of-states changes near the Fermi level and the lattice instability in TiSe_2 / G., Margaritondo; Bertoni, Carlo Maria; J. H., Weaver; F., Levy; N. G., Stoffel; A. D., Katnani. - In: PHYSICAL REVIEW. B, CONDENSED MATTER. - ISSN 0163-1829. - STAMPA. - 23:(1981), pp. 3765-3769. [10.1103/PhysRevB.23.3765]
G., Margaritondo; Bertoni, Carlo Maria; J. H., Weaver; F., Levy; N. G., Stoffel; A. D., Katnani
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/738807
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