HEAT-CAPACITY STUDY OF ACETYLENE ON GRAPHITE

被引:10
作者
ALKHAFAJI, MT [1 ]
MIGONE, AD [1 ]
机构
[1] SO ILLINOIS UNIV,MOLEC SCI PROGRAM,CARBONDALE,IL 62901
来源
PHYSICAL REVIEW B | 1992年 / 45卷 / 10期
关键词
D O I
10.1103/PhysRevB.45.5729
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
ac calorimetry was used to study the melting of C2D2 films at submonolayer coverages. Near 131 K two sharp, closely spaced heat-capacity peaks indicative of a sequence of two first-order phase transitions are observed. The higher temperature peak is identified as melting. These results are compared with recent computer simulations which predict continuous melting for long nonspherical adsorbates.
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收藏
页码:5729 / 5732
页数:4
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