Metastable spin-polarized carbon clusters C_8 and their ensembles

Details Metastable spin-polarized carbon clusters C_8 and their ensembles Metastable spin-polarized carbon clusters C_8 and their ensembles

2002-09-24

arxiv.org/abs/cond-mat/0209556v1

Phys. Low-Dim. Struct. 7/8 (2002) 65-76

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

9 ps figures

Scientific paper

Results of tight-binding calculations on metastable spin-polarized carbon clusters C_8 (prismanes) are presented. It is shown that those clusters can form ensembles due to intercluster bonding. The binding energy of a given metastable configuration decreases monotonously with the total spin S, while the activation energy for the decay of a metastable state has distinct maxima as a function of S. For specific values of S, the dynamical stability of spin-polarized ensembles of prismanes appears to be higher than that of an isolated prismane, pointing to a possibility of existence of "cluster matter" composed of spin-polarized clusters C_8

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