Lattice parameter and thermal expansion of monocrystalline silicon
Journal of Applied Physics1997Vol. 82(11), pp. 5396–5400
Citations Over TimeTop 10% of 1997 papers
Abstract
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.
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