منابع مشابه
NUMERICAL SIMULATIONS OF THE PHASE TRANSITIONS IN CLUSTERS
We have studied the phase transitions in atomic clusters by molecular dynamics simulation, assuming Lennard-Jones interatomic pair potential. Calculations are performed by DAP parallel computer. The results are analyzed by simulating their orientational distribution plots (dot-plot), and neutron diffraction patterns. It is shown that all the main features of the bulk phase transitions are e...
متن کاملnumerical simulations of the phase transitions in clusters
we have studied the phase transitions in atomic clusters by molecular dynamics simulation, assuming lennard-jones interatomic pair potential. calculations are performed by dap parallel computer. the results are analyzed by simulating their orientational distribution plots (dot-plot), and neutron diffraction patterns. it is shown that all the main features of the bulk phase transitions are essen...
متن کاملSecond-order phase transitions in amorphous gallium clusters.
Ion mobility and calorimetry measurements have been used to probe the nature of the phase transitions in gallium clusters with 29-55 atoms. While most clusters appear to undergo a first-order transition between solidlike and liquidlike phases, a few show the signature of melting without a significant latent heat. These transitions appear to be the finite size analogue of a second-order phase tr...
متن کاملDeceptive signals of phase transitions in small magnetic clusters.
We present an analysis of the thermodynamic properties of small transition-metal clusters and show how the commonly used indicators of phase transitions such as peaks in the specific heat or magnetic susceptibility can lead to deceptive interpretations of the underlying physics. The analysis of the distribution of zeros of the canonical partition function in the whole complex temperature plane ...
متن کاملPhase transitions in metal clusters and cluster catalysts.
Comparing the phase transitions of metal clusters with those of dielectric clusters shows that although the relative energies of the phase transitions for metals is typically less than those of dielectrics, other parameters of the phase transitions such as the entropy jumps and the relative widths of the coexistence bands are comparable for the two kinds of clusters. The dominating special char...
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ژورنال
عنوان ژورنال: Low Temperature Physics
سال: 2009
ISSN: 1063-777X,1090-6517
DOI: 10.1063/1.3114589