Home
For authors
Submission status

Current
Archive (English)
Archive
   Volumes 81-92
   Volumes 41-60
   Volumes 21-40
   Volumes 1-20
   Volumes 61-80
      Volume 80
      Volume 79
      Volume 78
      Volume 77
      Volume 76
      Volume 75
      Volume 74
      Volume 73
      Volume 72
      Volume 71
      Volume 70
      Volume 69
      Volume 68
      Volume 67
      Volume 66
      Volume 65
      Volume 64
      Volume 63
      Volume 62
      Volume 61
Search
VOLUME 76 (2002) | ISSUE 3 | PAGE 181
Dynamic structure factor in liquid cesium on the basis of time-scale invariance of relaxation processes
Abstract
The dynamic structure factor S(k,ω) in liquid cesium near the melting point at T=308 K is studied by means of Zwanzig-Mori's memory function formalism. The spectra of S(k,ω) are calculated on the basis of the idea of time-scale invariance of relaxation processes in liquid metals, which appeared on the fourth relaxation level. The obtained spectra of S(k,ω) are compared with the results of the inelastic neutron scattering measurement. For the description of memory effects we use the statistical presentation about the non-Markovity parameter \varepsilon_{1}(k,\omega). We find that collective excitations at the low wave vector values have a non-Markovian nature.