COMPARATIVE-STUDY OF HYPERSONIC DYNAMICS IN CAF2 AND SRF2 FILMS ON SI(111)

Citation
Vv. Aleksandrov et al., COMPARATIVE-STUDY OF HYPERSONIC DYNAMICS IN CAF2 AND SRF2 FILMS ON SI(111), Thin solid films, 237(1-2), 1994, pp. 25-28
Citations number
23
Categorie Soggetti
Physics, Applied","Material Science","Physics, Condensed Matter
Journal title
ISSN journal
00406090
Volume
237
Issue
1-2
Year of publication
1994
Pages
25 - 28
Database
ISI
SICI code
0040-6090(1994)237:1-2<25:COHDIC>2.0.ZU;2-G
Abstract
CaF2 and SrF2 films grown on Si(111) by molecular beam epitaxy were st udied by the Brillouin spectoscopy method. The measured velocities of surface acoustic waves are in close agreement with those calculated wi th a simple model of a layered structure. The only discrepancy was a d ecrease of the velocity in CaF2 films of about 100 nm thick: this was attributed to the difference of the growth modes at the beginning of C aF2 and SrF2 epitaxy on Si(111).