M. Rietha, W. Schommersb, S. Baskoutasc, C. Politisc
a AMA-SYSTEMS GmbH, Unterer Hardweg 9, 75181 Pforzheim, Germany; b Forschungszentrum Karlsruhe, Institut für Nanotechnologie, P.O.Box 3640, 76021 Karlsruhe, Germany; c Department of Engineering Science, University of Patras, 26110 Patras, Greece
Abstract It is well-known that nano-systems can have properties which are distinctly different from macroscopic systems. In this study we point out the following specific behaviour: if the particle number is decreased so that the size of the system is in the nanometer-realm, new effects emerge which reflect certain features of biological systems although the system is inorganic in nature. This behaviour is shown by realistic molecular dynamics calculations in connection with aluminum-nanoclusters at various temperatures. The clusters can transform without external influence from a metastable into a stable state, and there can be more than one stable state, that is, we observe a bifurcation in the sense of chaos-theory. The stable states can differ in both the atomic structure and the outer shape.
Received: 29 December 2000
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 19845002), the Special Project of the Presidential Foundation of the Chinese Academy of Sciences and also the Special Project the Institute of Nuclear Power of China.
Cite this article:
M. Rieth, W. Schommers, S. Baskoutas, C. Politis, SPONTANEOUS TRANSFORMATIONS OF NANOCLUSTERS 2001 Chinese Physics 10 132
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