CPA theory for jump diffusion of particles in periodic lattices

Kimmo Kaski, Raza A. Tahir-Kheli, R.J. Elliott

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

20 Sitaatiot (Scopus)

Abstrakti

The incoherent dynamical structure factor and the diffusion coefficient of the nearest neighbour (NN) jump diffusion model is studied. Diffusion of a specific particle in a static but random arrangement of background particles is considered. The virtual crystal approximation and coherent potential approximation procedures are used to find solutions. First five exact frequency moments of the spectral density are calculated and compared with those given by these theories. In simple cubic and body-centred cubic lattices four first moments are exactly reproduced by the CPA solution.
AlkuperäiskieliEnglanti
Sivut209-220
JulkaisuJournal of Physics C: Solid State Physics
Vuosikerta15
Numero2
DOI - pysyväislinkit
TilaJulkaistu - 1982
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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