1 F-NOISE IN METALLIC CLUSTERS

Authors
BULGAC A
Citation
A. Bulgac, 1 F-NOISE IN METALLIC CLUSTERS, Zeitschrift fur Physik. D, Atoms, molecules and clusters, 40(1-4), 1997, pp. 454-457
Citations number
18
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Zeitschrift fur Physik. D, Atoms, molecules and clusters → ACNP
ISSN journal
01787683
Volume
40
Issue
1-4
Year of publication
1997
Pages
454 - 457
Database
ISI
SICI code
0178-7683(1997)40:1-4<454:1FIMC>2.0.ZU;2-P
Abstract
When the cluster excitation energy is such that the hopping between di fferent isomers becomes energetically allowed, the power spectrum corr esponding to the very long-time dynamics is dominated by the 1/f-noise . The emergence of 1/f-noise is indicative of the absence of any chara cteristic time scales in the structure/conformation cluster dynamics. The 1/f-noise portion of the power spectrum covers all frequencies bel ow the characteristic cluster modes and is essentially temperature ind ependent once the cluster has ''melted''.