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Phase transitions in various kinds of clusters

机译:各种簇中的相变

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摘要

This discussion examines cluster phase transitions and properties related to those phase transitions. Interpreted in terms of their potential energy surfaces, phase transitions in clusters of dielectric and metal atoms differ. Properties of aggregate states of dielectric clusters vary weakly as functions of temperature, and phase coexistence takes place in a range of conditions around the traditional melting point, where the solid and liquid phases have equal chemical potentials. On contrary, the configurational state of a solid metal cluster may well vary as Is heated, and the phase transition results, at least in part, from electronic coupling, as well as from changes in atomic configuration.
机译:此讨论检查了群集相变以及与这些相变有关的属性。就其势能面而言,介电和金属原子簇的相变不同。介电团簇的聚集态的性质随温度的变化而微弱地变化,并且在固溶和液相具有相等化学势的传统熔点附近的一系列条件下发生相共存。相反,固体金属簇的构型状态可能随着被加热而很好地变化,并且相变至少部分地由电子耦合以及原子构型的变化引起。

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