THE EFFECT OF THE RANGE OF THE POTENTIAL ON THE MULTI-STEP CLUSTER MELTING PROCESS

Shi-Wei Ren ()
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Shi-Wei Ren: Department of Applied Physics, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, Hebei Province, P. R. China

International Journal of Modern Physics C (IJMPC), 2004, vol. 15, issue 05, 649-658

Abstract: By using the microcanonical molecular dynamics simulation, the melting processes of the clusters bound by Morse potential are investigated. It is found that these clusters show a multi-step melting process as long as the range of the Morse potential is a suitable value. The origins of this multi-step process are analyzed. I find that not only the repulsive core of the potential but also the attractive tail range of the potential influences the melting process. Moreover, the occurrence of the multi-step melting process is more sensitive to the tail region of the Morse potential.

Keywords: Morse clusters; multi-step melting process; range of the potential; 61.46.+w; 36.40.Ei (search for similar items in EconPapers)
Date: 2004
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DOI: 10.1142/S012918310400608X

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