Change search
ReferencesLink to record
Permanent link

Direct link
Specific features of thermal expansion and polyamorphism in CH4 – C60 solutions at low temperatures
Show others and affiliations
2007 (English)In: Low Temperature Physics, ISSN 1063-777X, Vol. 33, no 12, 1068-1072 p.Article in journal (Refereed) Published
Abstract [en]

The temperature dependence of the linear thermal expansion coefficient alpha(T) is investigated in the temperature range of 2.5 to 23 K for two different CH4-C-60 solutions in which CH4 molecules occupy 24 and 50% of the octahedral interstitial sites of the C-60 lattice. In both cases, alpha(T) exhibits hysteresis, suggesting the existence of two types of orientational glass associated with these solutions. The temperature of the first-order phase transition between these two glasses is estimated, and the behavior of these two glasses is compared. The characteristic times of thermalization tau(1), reorientation of the C-60 molecules tau(2), and of the phase transformation between the glasses tau('), are estimated for these solutions. Both the temperature dependence of alpha(T) and the characteristic thermalization time tau(1) are found to have features near the phase transition temperature, and an explanation is put forward to explain these observed features.

Place, publisher, year, edition, pages
2007. Vol. 33, no 12, 1068-1072 p.
Keyword [en]
Thermal expansion, fullerene, C60, intercalation compound, solvate, CH4, methane, exohedral, orientational glass, polyamorphism
National Category
Condensed Matter Physics
URN: urn:nbn:se:umu:diva-6867DOI: doi:10.1063/1.2807242OAI: diva2:146537
Simultaneous publication in Fizika Nizhkik Temperatur vol. 33, issue 12, pp. 1401-1405.Available from: 2008-02-20 Created: 2008-02-20 Last updated: 2011-01-11Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Sundqvist, Bertil
By organisation
Condensed Matter Physics

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 19 hits
ReferencesLink to record
Permanent link

Direct link