GLASS-TRANSITION IN SINGLE-CRYSTAL C-60 STUDIED BY HIGH-RESOLUTION DILATOMETRY

被引：200

作者：

GUGENBERGER, F ^{[1
]}

HEID, R ^{[1
]}

MEINGAST, C ^{[1
]}

ADELMANN, P ^{[1
]}

BRAUN, M ^{[1
]}

WUHL, H ^{[1
]}

HALUSKA, M ^{[1
]}

KUZMANY, H ^{[1
]}

机构：

[1] UNIV VIENNA,INST FESTKORPERPHYS,A-1090 VIENNA,AUSTRIA

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.69.3774

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The thermal expansion of single-crystalline C60 is studied using high-resolution capacitance dilatometry. In addition to the orientational-ordering transition at 261 K, we observe a transition at T(g) almost-equal-to 90 K due to the freezing in of orientational disorder, which has the character of a glass transition. The relaxation near T(g) is studied by varying the heating (cooling) rate over more than two decades. It is found to obey an Arrhenius behavior with E(a) = 288 +/- 5 meV within a simple glass-transition model.

引用

页码：3774 / 3777

页数：4

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