Structure, disorder, and phase diagram of C60 up to 1 GPa and below 300 K
1994 (English)In: High Pressure in Material Science and Geoscience: Proceedings of the XXXII Annual Meeting of the European High Pressure Research Group, Brno 1994, Praha, Czech Republic: Prometheus , 1994, 109-112 p.Conference paper (Refereed)
We have measured the compressibility and the thermal conductivity of C60 in the range below 300 K and up to 1 GPa (10 kbar). From the data obtained we have deduced the p-T phase diagram of C60. Literature data show that the ratio of pentagon-to-hexagon oriented molecules in the orientationally ordered phase decreases with increasing pressure, and from our data we conclude that C60 forms a new, completely "hexagon oriented" phase above 0.6 GPa at 150 K, or 1.2 GPa at 300 K. The glass transition temperature (90 K at atmospheric pressure) is found to increase by 54 K/GPa.
Place, publisher, year, edition, pages
Praha, Czech Republic: Prometheus , 1994. 109-112 p.
Fullerenes, C60, high pressure, phase diagram, thermal conductivity, compressibility, molecular orientation, orientational structure, glass transition, phase transition
Condensed Matter Physics
Research subject Physics
IdentifiersURN: urn:nbn:se:umu:diva-26408ISBN: 80-85849-93-3OAI: oai:DiVA.org:umu-26408DiVA: diva2:248749
Editors: J. Kamarád, Z. Arnold and A. Kapicka.2009-10-092009-10-092010-02-01