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Spectral Function Of A Strongly Correlated Electron-Phonon System


Entel, Peter; Grabowski, Stefan; Zlatić, Veljko; Ikeda, M.A.
Spectral Function Of A Strongly Correlated Electron-Phonon System // Physica B, 237 (1997), 75-77 (međunarodna recenzija, članak, znanstveni)


Naslov
Spectral Function Of A Strongly Correlated Electron-Phonon System

Autori
Entel, Peter ; Grabowski, Stefan ; Zlatić, Veljko ; Ikeda, M.A.

Izvornik
Physica B (0921-4526) 237 (1997); 75-77

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

Ključne riječi
Strongly interacting electrons; spectral properties; high-temperature superconductivity; specific heat

Sažetak
We discuss results for two types of spectral functions, the function A(k, omega) of interacting fermions on a square lattice, and the function alpha(2)F(k, k", omega) of the square lattice electrons interacting with phonons. Strong local Coulomb interactions lead to enhanced momentum dependence of alpha(2)F(k, k", omega) which may increase the superconducting transition temperature T-c. Finally, the Eliashberg equations have been solved for the isotropic case; however, the use of the Fermi-surface-averaged spectral weight, alpha(2)(omega)F(omega), might be inappropriate in the case of high-temperature superconductors.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
00350105

Ustanove
Institut za fiziku, Zagreb

Autor s matičnim brojem:
Veljko Zlatić, (54915)

Časopis indeksira:


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