Fine structure in high-resolution photoemission spectra of quasi-two-dimensional 1T-TaS2

Luca Gavioli, J. Hayoz, D. Naumović, H. Berger, L. Perfetti, A. Taleb-Ibrahimi, L. Schlapbach, P. Aebi, Th Pillo

Risultato della ricerca: Contributo in rivistaArticolo in rivistapeer review

20 Citazioni (Scopus)

Abstract

Using high-resolution angle-resolved photoemission spectroscopy (ARPES). we examined the charge density wave (CDW) compound 1T-TaS2 as a function of the photon energy (energy range from 11 up to 33 eV) for both quasicommensurate (QC) and commensurate (C) CDW phases, While the QC-phase normal emission ARPES spectra coincide with previous results, normal emission spectra of the C phase reveal evidence for a fine structure in the CDW-induced features between 1 eV binding energy and the Fermi level. This fine structure may be explained by the subband manifold of the Ta 5d band, split off due to the CDW-induced root13 x root13 superstructure.
Lingua originaleEnglish
pagine (da-a)245105-245108
Numero di pagine4
RivistaPHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS
Volume64
DOI
Stato di pubblicazionePubblicato - 2001

Keywords

  • charge density wave
  • fine structure

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