RAMAN-SCATTERING OF SILICON CLATHRATES

Authors
GUYOT Y CHAMPAGNON B RENY E CROS C POUCHARD M MELINON P PEREZ A GREGORA I
Citation
Y. Guyot et al., RAMAN-SCATTERING OF SILICON CLATHRATES, Physical review. B, Condensed matter, 57(16), 1998, pp. 9475-9477
Citations number
20
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
57
Issue
16
Year of publication
1998
Pages
9475 - 9477
Database
ISI
SICI code
0163-1829(1998)57:16<9475:ROSC>2.0.ZU;2-U
Abstract
Silicon clathrates exhibit cagelike host lattices formed by 46 or 136 silicon atoms in which alkali atoms M are trapped. The Raman spectra o f the silicon clathrates K8Si46, Na1Si136, Na6Si136, and Na10Si136 are observed and compared with theoretical predictions determined from gr oup theory and density of vibrational states simulations. These experi mental results demonstrate the need of improved simulations of vibrati onal spectra. [S0163-1829(98)51116-2].