Direct observation of stretched-exponential relaxation in low-temperature lennard-jones systems using the cage correlation function

Eran Rabani, J. Daniel Gezelter, B. J. Berne

Research output: Contribution to journalArticlepeer-review

Abstract

We report on the direct observation of stretched exponential relaxation in low-temperature monatomic Lennard-Jones systems which were cooled slowly from the liquid phase to form crystals with a large number of defects. We use the cage correlation function [E. Rabani, J. D. Gezelter, and B. J. Berne, J. Chem. Phys. 107, 6867 (1997)] which measures changes in atomic surroundings to observe the stretched exponential relaxations. We obtain a distribution of hopping rates assuming that the origin of the Kohlrausch-Williams-Watts law is from static disorder in the distribution of barrier heights.

Original languageEnglish
Pages (from-to)3649-3652
Number of pages4
JournalPhysical Review Letters
Volume82
Issue number18
DOIs
StatePublished - 1999
Externally publishedYes

Fingerprint

Dive into the research topics of 'Direct observation of stretched-exponential relaxation in low-temperature lennard-jones systems using the cage correlation function'. Together they form a unique fingerprint.

Cite this