SEARCH FOR TUNNELING CENTERS IN LENNARD-JONES CLUSTERS

Authors
DALDOSS G PILLA O VILIANI G
Citation
G. Daldoss et al., SEARCH FOR TUNNELING CENTERS IN LENNARD-JONES CLUSTERS, Philosophical magazine. B. Physics of condensed matter.Statistical mechanics, electronic, optical and magnetic, 77(2), 1998, pp. 689-698
Citations number
25
Categorie Soggetti
Physics, Applied",Mechanics,"Physics, Condensed Matter","Material Science
Journal title
Philosophical magazine. B. Physics of condensed matter.Statistical mechanics, electronic, optical and magnetic → ACNP
ISSN journal
13642812
Volume
77
Issue
2
Year of publication
1998
Pages
689 - 698
Database
ISI
SICI code
1364-2812(1998)77:2<689:SFTCIL>2.0.ZU;2-U
Abstract
We report numerical procedures for, and preliminary results on the sea rch for, tunnelling centres in Lennard-Jones clusters seen as simple m odel systems of glasses. Several of the double-well potentials identif ied are good candidates to give rise to two-level systems. The role of boundary effects and the application of the semiclassical Wentzel-Kra mers-Brillouin approximation in multidimensional spaces for the calcul ation of the ground-state splitting are discussed.