A CORRELATION BETWEEN THE MICROCRYSTALLITE SIZE AND THE OPTICAL-PROPERTIES OF AMORPHOUS-CARBON GRAINS

Authors
KOIKE C KAITO C SHIBAI H
Citation
C. Koike et al., A CORRELATION BETWEEN THE MICROCRYSTALLITE SIZE AND THE OPTICAL-PROPERTIES OF AMORPHOUS-CARBON GRAINS, Monthly Notices of the Royal Astronomical Society, 268(2), 1994, pp. 321
Citations number
23
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Monthly Notices of the Royal Astronomical Society → ACNP
ISSN journal
00358711
Volume
268
Issue
2
Year of publication
1994
Database
ISI
SICI code
0035-8711(1994)268:2<321:ACBTMS>2.0.ZU;2-K
Abstract
The crystalline structures of various amorphous carbon grains and of g raphite have been studied by means of transmission electron microscopy . It is found that differences amongst the specimens in the absolute v alue of absorption and in the spectral index depend on differences in the crystallite size of the amorphous grains and graphite grains. On t he basis of this observation, the occurrence of ultrafine grains of th e graphite phase as interstellar dust is discussed.