GAP REDUCTION OF C-60 AND C-70 AT HIGH-PRESSURE

Authors
MELETOV KP DOLGANOV VK OSSIPYAN YA
Citation
Kp. Meletov et al., GAP REDUCTION OF C-60 AND C-70 AT HIGH-PRESSURE, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 256, 1994, pp. 915-920
Citations number
11
Categorie Soggetti
Crystallography
Journal title
Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals → ACNP
ISSN journal
1058725X
Volume
256
Year of publication
1994
Pages
915 - 920
Database
ISI
SICI code
1058-725X(1994)256:<915:GROCAC>2.0.ZU;2-Y
Abstract
The absorption spectra of the C60 and C70 are measured at pressures up to 19 GPa. The pressure dependence of the fundamental absorption edge position E(P) is determined for both materials. The initial value of dE/dP=-0.15 eV/GPa for the stronger-absorption region of C60 decreases up to -0.019 eV/GPa at 12 GPa. The weaker-absorption region located n ear the fundamental absorption edge shifts slower dE/dP=-0.05 eV/GPa. For the C70 the initial value of dE/dP=-0.1 eV/GPa decreases up to -0. 029 eV/GPa at 10 GPa. All pressure induced changes are reversible in t his pressure range.