EVIDENCE FOR A SIZE-DEPENDENT MELTING OF SODIUM CLUSTERS

被引：122

作者：

MARTIN, TP

NAHER, U

SCHABER, H

ZIMMERMANN, U

机构：

[1] Max-Planck-Institut für Festkörperforschung, 70569 Stuttgart

来源：

JOURNAL OF CHEMICAL PHYSICS | 1994年 / 100卷 / 03期

关键词：

D O I：

10.1063/1.466530

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Geometric shell structure in the mass spectra of sodium clusters was found to disappear as the clusters were heated. The exact temperature at which the shells disappeared was dependent on the size of the clusters. These observations are interpreted as evidence for a size-dependent melting. Clusters containing 1000 atoms appear to melt at 288 K, clusters containing 10 000 atoms at 303 K. Both values lie well below the bulk melting temperature of 371 K.

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页码：2322 / 2324

页数：3

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