1/f Spectra in finite atomic clusters

Nayak, Saroj K. ; Ramaswamy, Ramakrishna ; Chakravarty, Charusita (1995) 1/f Spectra in finite atomic clusters Physical Review Letters, 74 (21). pp. 4181-4184. ISSN 0031-9007

Full text not available from this repository.

Official URL: http://prl.aps.org/abstract/PRL/v74/i21/p4181_1

Related URL: http://dx.doi.org/10.1103/PhysRevLett.74.4181


We study small clusters of atomic argon, Ar7, Ar13, and Ar55, in the temperature range when they undergo a transition from a solidlike phase to a liquidlike phase. The power spectra of potential energy fluctuations of tagged atoms in the liquid state show 1/f behavior over a wide range of frequency f, unlike either the solid phase or bulk liquid, and suggest a new experimental means of detecting cluster melting. The origin of this temporal scale invariance is explored by studying the individual potential energy distributions, which are observed to become multimodal when the clusters melt.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:6034
Deposited On:19 Oct 2010 09:45
Last Modified:02 Feb 2011 10:07

Repository Staff Only: item control page