Spontaneous Formation and Stability of GaP Cage Structures: A Theoretical Prediction of a New Fullerene
Abstract
We report the spontaneous formation of a GaP fullerene cage in ab-initio Molecular Dynamics simulations starting from a bulk fragment. A systematic study of the geometric and electronic properties of neutral and ionized III-V (GaP, GaAs, AlAs, AlP) clusters suggests the stability of hetero-fullerenes formed by compounds with zinchlend bulk structure. Our prediction is supported by several indicators: these clusters show closed electronic shells and relatively large energy gaps; the ratio between the cohesive energy per atom in the cluster and in the bulk is very close to the value found for carbon fullerenes of the same size; the clusters are thermally stable up to a temperature range of 1500-2000 K and they do not dissociate when ionized.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 2001
- Accession Number
- ADP012138
Entities
People
- Annalisa Fasolino
- Francesco Buda
- Valentina Tozzini
Organizations
- Radboud University Nijmegen