1998/12/07 by Alejandro Strachan, A. Strachan, C. O. Dorso · 2 citations
Earth and Planetary Sciences · Engineering · Physics and Astronomy · #Atomic and Molecular Physics #Laser-induced spectroscopy and plasma #nanoparticles nucleation surface interactions #nucl-th
paper · pdf · doi:10.1103/physrevc.59.285
published as Phys.Rev.C59:285-294,1999 · 23 pages, 11 figs
arxiv created 1998/12/07 · openalex publication_date 1999/01/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study fragmentation of small atomistic clusters via molecular dynamics. We calculate the time scales related to fragment formation and emission. We also show that some degree of thermalization is achieved during the expansion process, which allows the determination of local temperature. In this way we can calculate the breakup temperature as a function of excitation energy, i.e., the fragmentation caloric curve. Fragmentation appears as a rather constant temperature region of the caloric curve. Furthermore, we show that different definitions of temperature, related to different degrees of freedom, yield very similar values.