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Raman spectrum and charge fluctuations in the copper-oxide superconductors


Nikšić, Hrvoje; Tutiš, Eduard; Barišić, Slaven
Raman spectrum and charge fluctuations in the copper-oxide superconductors // Physica C: Superconductivity, 235/240 (1994), 4; 2179-2180 doi:10.1016/0921-4534(94)92311-6 (međunarodna recenzija, članak, znanstveni)


Naslov
Raman spectrum and charge fluctuations in the copper-oxide superconductors

Autori
Nikšić, Hrvoje ; Tutiš, Eduard ; Barišić, Slaven

Izvornik
Physica C: Superconductivity (0921-4534) 235/240 (1994), 4; 2179-2180

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
High Tc superconductivity; cuprates; charge fluctuations; Raman scattering

Sažetak
The effect of the charge fluctuations on the electronic spectrum and the Raman spectrum of high temperature superconductors is examined within the slave boson approach. Instead of using the saddle point approximation for slave bosons, we confine ourselves to the non-crossing approximation (NCA) in summing the diagrams for the Green functions, thus obtaining the renormalized hole spectrum and its lifetime on equal footing. The electronic Raman spectrum is calculated, showing the characteristic featureless behaviour up to the frequency of the order of renormalized Δpd parameter. The dependence on the polarization of the incident and the scattered light agrees with experiments.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Ustanove
Institut za fiziku, Zagreb,
Prirodoslovno-matematički fakultet, Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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