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VOLUME 59 (1994) | ISSUE 3 | PAGE 182
Anomalous density fluctuations in a nonequilibrium gas-adsorbate system
The results of an experimental study of the dynamics of the fluctuations in the number of particles in a nonequilibrium gas-adsorbate system are presented. The adsorbate was a multilayer xenon adsorbate. Fluctuations in the Xe pressure, which are anomalously large in comparison with equilibrium values, were observed. The spectrum of these fluctuations is of the nature of a \/f noise, but it has a peak at the frequency ω = 3.3χ 10-2 s~x. The reason for the observed anomalies may lie in the dynamics of the formation of the rough adsorbate surface.