Non-linear and non-exponential volume relaxation at the orientational 'glass' transition in solid C-60

被引：10

作者：

Meingast, C ^{[1
]}

Haluska, M ^{[1
]}

Kuzmany, H ^{[1
]}

机构：

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

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1996年 / 201卷 / 1-2期

关键词：

D O I：

10.1016/0022-3093(96)00189-5

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The orientational 'glass' transition in solid C-60 has been investigated in detail by high-resolution capacitance dilatometry. Thermal expansivity data taken for a variety of heating (cooling) rates are fit using the widely applied phenomenological Tool-Narayanaswamy (TN) model for structural relaxation. This analysis shows that the relaxation is both slightly non-exponential (beta = 0.90 +/- 0.02) and non-linear (x = 1.08 +/- 0.02). This 'simple' system, thus, exhibits a qualitatively similar degree of complexity as conventional glass formers.

引用

页码：167 / 171

页数：5

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