WHEN THE MELTING AND FREEZING POINTS ARE NOT THE SAME

被引：34

作者：

BERRY, RS

机构：

[1] UNIV CHICAGO,JAMES FRANCK INST,DEPT CHEM,CHICAGO,IL 60637

[2] UNIV CHICAGO,SCH PUBL POLICY STUDIES,CHICAGO,IL 60637

来源：

SCIENTIFIC AMERICAN | 1990年 / 263卷 / 02期

关键词：

D O I：

10.1038/scientificamerican0890-68

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Freezing and melting points are not always one and the same. Experiments with atomic clusters - small groups of atoms that share the properties of individual molecules and bulk materials - show that these two temperatures can actually be very different. Depending on the available energy, clusters can simultaneously exist as solids and liquids, then jump abruptly to either state.

引用

页码：68 / &