Heat capacity of isotopically enriched Si, Si and Si in the temperature range 4 K<<em>T</em><100 K期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Heat capacity of isotopically enriched Si, Si and Si in the temperature range 4 K<T<100 K

Authors:	A Gibin AV Gusev M Cardona

Institution:	^a Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, 603950 Nizhny Novgorod, Russian Federation ^b Max-Planck-Institut für Festkörperforschung, Chemieservice, Heisenbergstrasse 1, D-70569 Stuttgart, Germany ^c VITCON Projectconsult GmbH, 07745 Jena, Germany

Abstract:	The heat capacity of isotopically enriched ²⁸Si, ²⁹Si, ³⁰Si samples has been measured in the temperature range between 4 and 100 K. The heat capacity of Si increases with isotopic mass. The values of the initial Debye temperature Θ_D(0) for the three isotopic varieties of silicon have been determined. Good agreement with the theoretical dependence of the heat capacity on isotopic mass has been found.

Keywords:	65 40Ba 65 90 +i
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