Lattice parameter and thermal expansion of monocrystalline silicon

被引:33
作者
Bergamin, A [1 ]
Cavagnero, G [1 ]
Mana, G [1 ]
Zosi, G [1 ]
机构
[1] UNIV TURIN,DIPARTIMENTO FIS GEN,I-10125 TURIN,ITALY
关键词
D O I
10.1063/1.366308
中图分类号
O59 [应用物理学];
学科分类号
摘要
We present experimental results for the lattice parameter and the thermal expansion of a silicon monocrystal at room temperature. In the precision determination of the Avogadro constant, an accurate knowledge of the value of the thermal expansion of silicon monocrystals is necessary so that their unit cell and molar volumes can both be referred to the same temperature. Recent advances in x-ray interferometry have made it possible to reduce the uncertainty of that value by one order of magnitude. (C) 1997 American Institute of Physics.
引用
收藏
页码:5396 / 5400
页数:5
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