Condensed Matter Physics, 2007, vol. 10, No. 2(50), p. 259268, English
DOI:10.5488/CMP.10.2.259

Title: Density of states of one-dimensional Pauli ionic conductor
Author(s):
  I.V.Stasyuk (Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine, 1 Svientsitskii Str., 79011 Lviv, Ukraine) ,
  I.R.Dulepa (Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine, 1 Svientsitskii Str., 79011 Lviv, Ukraine)

Microscopic one-dimensional noninteracting model for the description of the energy spectrum of the ion subsystem in ionic conductor is considered. The processes of ionic hoppings are described in terms of Pauli operators. Time-dependent correlation functions < b(t)b+(0)>j in Pauli operators are obtained using the exact numerical procedure known for time-dependent spin correlation functions. The frequency dependence of autocorrelation function Jbb+(ω) is calculated and analysed at the wide range of temperatures. The frequency and temperature dependences of the one-particle densityof states are investigated.

Key words: Pauli statistics, correlation functions, particle density of states, ionic conductor
PACS: 75.10.Pq, 66.30.Dn, 66.10.Ed


[ps,pdf] << Contents of Vol.10, No.2(50)