Strong electron-electron and electron-phonon interactions in one- and two-dimensional solids

We discuss the spectral signatures of strong electronic correlations and electron-phonon interactions in two representative low-dimensional systems. In the 2D compound 1T-TaSe2 a charge-density-wave (CDW) induces a narrowing of the conduction band, which triggers a surface metal-insulator (M-I) transition and the disappearance of the quasiparticle (QP) features. In the 1D blue bronze K0.3MoO3 strong interaction with the lattice lead to pseudogapped polaronic lineshapes, and the large mass renormalization masks the signatures of electronic correlations. (C) 2004 Elsevier B.V All rights reserved.


Published in:
Journal Of Electron Spectroscopy And Related Phenomena, 137, 417-423
Year:
2004
Publisher:
Elsevier
ISSN:
0368-2048
Keywords:
Laboratories:




 Record created 2010-04-07, last modified 2018-09-13


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