THE INFLUENCE OF THE ISOTOPIC COMPOSITION ON THE THERMAL-EXPANSION OFCRYSTALLINE SI

Authors
BIERNACKI S SCHEFFLER M
Citation
S. Biernacki et M. Scheffler, THE INFLUENCE OF THE ISOTOPIC COMPOSITION ON THE THERMAL-EXPANSION OFCRYSTALLINE SI, Journal of physics. Condensed matter, 6(26), 1994, pp. 4879-4884
Citations number
15
Categorie Soggetti
Physics, Condensed Matter
Journal title
Journal of physics. Condensed matter → ACNP
ISSN journal
09538984
Volume
6
Issue
26
Year of publication
1994
Pages
4879 - 4884
Database
ISI
SICI code
0953-8984(1994)6:26<4879:TIOTIC>2.0.ZU;2-N
Abstract
We report first-principles calculations of the dependence of the latti ce parameter of Si on temperature and on the isotopic composition. Aro und 80 K (the minimum of the thermal expansion coefficient) the lattic e parameter difference of different isotopic compositions is largest a nd then it decreases monotonically with increasing temperature. The re sults are explained in a simple physical picture.