Copper-induced diamond formation in amorphous carbon |
| |
Authors: | V I Ivanov-Omskii S G Yastrebov |
| |
Institution: | (1) A. F. Ioffe Physicotechnical Institute, Russian Academy of Sciences, 194021 St. Petersburg, Russia |
| |
Abstract: | Diamond formation in hydrogenated amorphous-carbon films containing ultradisperse copper has been studied by measuring IR
absorption at two-phonon diamond frequencies. The anomalously high two-phonon absorption observed in the experiments has permitted
improving the sensitivity of the method. Mechanisms of the two-phonon absorption enhancement are discussed in terms of the
theory of a medium containing nanosized copper-doped graphite fragments. It is shown that the observed enhancement of two-phonon
absorption is caused by electrical induction of the local fields induced by irradiation in diamond nanocrystals acting on
adjoining copper-doped graphite fragments.
Fiz. Tverd. Tela (St. Petersburg) 41, 1863–1866 (October 1999) |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |