LOW-FREQUENCY ELASTIC PROPERTIES OF THE STRUCTURAL AND FREEZING TRANSITIONS IN SINGLE-CRYSTAL C-60

被引：83

作者：

SCHRANZ, W

FUITH, A

DOLINAR, P

WARHANEK, H

HALUSKA, M

KUZMANY, H

机构：

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

[2] UNIV LJUBLJANA, J STEFAN INST, 6111 LJUBLJANA, SLOVENIA

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.71.1561

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present the first low frequency (0.1-50 Hz) measurements of the complex elastic constant on C60 single crystals. We have measured a negative dip anomaly of 25% at T(I)=261 K, which did not show up in previous elastic studies at 10(4) Hz. The slow relaxation observed near T(I) is supposed to be due to the very slow dynamics of the order parameter fluctuations. In addition it is shown that the elastic anomalies observed at 10(4) Hz and 160 K originate from the same physical process as the ''glass'' transition at 80 K observed in thermal expansivity.

引用

页码：1561 / 1564

页数：4

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