Original scientific paper

Discrete approach to incoherent excitations in conductors

Paško Županović ; Department of Physics, Faculty of Science and Art, University of Split, Teslina 10, HR-21000 Split, Croatia
Aleksa Bjeliš ; Department of Physics, Faculty of Science, University of Zagreb, POB 331, HR-10002 Zagreb, Croatia
Željana Agić ; Department of Physics, Faculty of Science and Art, University of Split, Teslina 10, HR-21000 Split, Croatia

Abstract

While keeping the discreteness of the reciprocal space, we calculate the spectrum of incoherent electron-hole excitations in the conducting Fermi liquids. The method is illustrated on the well-known jellium model within the random phase approximation. It also leads to the formulation of a sum rule from which we get the details of the dispersion curve for the collective plasmon mode. The notion of time averaging in the discrete approach is briefly recalled.

Keywords

conducting Fermi liquids; discrete reciprocal space; incoherent electron-hole excitations; jellium model; random phase approximation; collective plasmon mode; dispersion curve

Hrčak ID:

301566

URI

https://hrcak.srce.hr/301566

Publication date:

1.10.2001.

Article data in other languages: croatian

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