Low-energy signatures of charge and spin fluctuations in Raman and optical spectra of the cuprates (Articolo in rivista)

Type
Label
  • Low-energy signatures of charge and spin fluctuations in Raman and optical spectra of the cuprates (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Alternative label
  • Caprara, S; Di Castro, C; Enss, T; Grilli, M (2008)
    Low-energy signatures of charge and spin fluctuations in Raman and optical spectra of the cuprates
    in Journal of physics and chemistry of solids
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Caprara, S; Di Castro, C; Enss, T; Grilli, M (literal)
Pagina inizio
  • 2155 (literal)
Pagina fine
  • 2159 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 69 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • \"[Caprara, S.; Di Castro, C.; Enss, T.; Grilli, M.] Univ Roma La Sapienza, Dipartimento Fis, SMC Ist Nazl Fis Mat, I-00185 Rome, Italy (literal)
Titolo
  • Low-energy signatures of charge and spin fluctuations in Raman and optical spectra of the cuprates (literal)
Abstract
  • We calculate the optical and Raman response within a phenomenological model of fermion quasiparticles coupled to nearly critical collective modes. We find that, whereas critical scaling properties might be masked in optical spectra due to charge conservation, distinct critical signatures of charge and spin fluctuations can be detected in Raman spectra exploiting specific symmetry properties. We compare our results with recent experiments on the cuprates. (C) 2008 Elsevier Ltd. All rights reserved. (literal)
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