金属团簇的电子熵、壳层结构和尺寸演化模式
Electronic entropy, shell structure, and size-evolutionary patterns of metal clusters
摘要：
我们表明，电子熵效应的大小演变模式相对较小（小至20个原子），简单的金属簇已经在中等温度下变得突出。我们的有限温度壳修正方法的计算和实验结果之间的详细协议得到一定的温度。该协议包括一个大小依赖的涂抹出的精细结构的功能，伴随着一个可测量的减少标志着主壳层和次壳层关闭的步骤的高度，从而允许集群温度的定量分析。
英文摘要：
We show that electronic-entropy effects in the size-evolutionary patterns of relatively small (as small as 20 atoms), simple-metal clusters become prominent already at moderate temperatures. Detailed agreement between our finite-temperature-shell-correction-method calculations and experimental results is obtained for certain temperatures. This agreement includes a size-dependent smearing out of fine-structure features, accompanied by a measurable reduction of the heights of the steps marking major-shell and subshell closings, thus allowing for a quantitative analysis of cluster temperatures.
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