Effects of pressure on the orientational ordering and phase transitions in solid C[sub 60] and C[sub 70]

Conference · Sun Jul 10 04:00:00 EDT 1994 · AIP Conference Proceedings (American Institute of Physics); (United States)

DOI:https://doi.org/10.1063/1.46415· OSTI ID:7017520

Samara, G A; Hansen, L V; Morosin, B; Schirber, J E ^[1]

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1. Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)

The temperature-pressure phase diagrams of solid C[sub 60] and C[sub 70] have been determined and compared. A significant finding is the large influence of interstitial species and of the pressure transmitting medium on the orientational ordering processes. The pressure results reveal different, nearly degenerate configurations in both solids, which are believed to be due to hindered molecular rotations by interstitial species, and possibly different stacking modes in C[sub 70]. [copyright] 1994 American Institute of Physics

• DOE Contract Number: AC04-76DP00789
• OSTI ID: 7017520
• Report Number(s): CONF-921145--
• Conference Information: Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Journal Volume: 309:1
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
CARBON
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DIFFERENTIAL THERMAL ANALYSIS
ELEMENTS
FULLERENES
INTERSTITIALS
NONMETALS
ORDER PARAMETERS
PHASE TRANSFORMATIONS
POINT DEFECTS
PRESSURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0273-0400 K
THERMAL ANALYSIS
VERY HIGH PRESSURE