Negative thermal expansion of fullerite C-60 at liquid helium temperatures

被引：33
|
作者：
Aleksandrovskii, AN [1 ]
Eselson, VB [1 ]
Manzhelii, VG [1 ]
Udovidchenko, BG [1 ]
Soldatov, AV [1 ]
Sundqvist, B [1 ]
机构：
[1] UMEA UNIV,DEPT EXPT PHYS,S-90187 UMEA,SWEDEN
来源：
LOW TEMPERATURE PHYSICS | 1997年 / 23卷 / 11期
关键词：
D O I：
10.1063/1.593498
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The thermal expansion of fullerite C-60 has been measured in the temperature range 2-9 K. A compacted fullerite sample with a diameter of about 6 mm and height of 2.4 mm was used. It was found that at temperatures below similar to 3.4 K the linear thermal expansion coefficient becomes negative, At temperatures above 5 K our results are in good agreement with the available literature data. A qualitative explanation of the results is proposed. (C) 1997 American Institute of Physics. [S1063-777X(97)01611-3].
引用
收藏
页码：943 / 946
页数：4
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