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ANSTO Publications Online >
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Please use this identifier to cite or link to this item:
http://apo.ansto.gov.au/dspace/handle/10238/3030
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| Title: | Thermal expansion of solutions of deuteromethane in fullerite C60 at low temperatures. Isotopic effect. |
| Authors: | Dolbin, AV Vinnikov, NA Gavrilko, VG Esel'son, VB Manzhelii, VG Gadd, GE Moricca, S Cassidy, D Sundqvist, B |
| Keywords: | Thermal Expansion Cobalt 60 Glass Phase Transformations Hysteresis Cell Differentiation |
| Issue Date: | Mar-2009 |
| Publisher: | American Institute of Physics |
| Citation: | Dolbin, A. V., Vinnikov, N. A., Gavrilko, V. G., Esel'son, V. B., Manzhelii, V. G., Gadd, G. E., et al. (2009). Thermal expansion of solutions of deuteromethane in fullerite c-60 at low temperatures. Isotopic effect. Low Temperature Physics, 35(3), 226-231. |
| Abstract: | The thermal expansion of CD4 solutions in the orientational glass C60 with molar concentration of deuteromethane 20 and 50% has been investigated in the temperature range 2.5–23 K. The orientational glass CD4–C60 undergoes a first-order phase transition in the temperature interval 4.5–55 K. This transition is manifested as hysteresis of the linear thermal expansion coefficient α as well as maxima in the temperature dependences α(T) and τ1(T), where τ1 is the characteristic thermalization time of the experimental samples. The characteristic re-orientation times of the C60 molecules and the characteristic phase transformations occurring in the experimental solutions are determined. The results of the present study are compared with the results of a similar study of the solution CH4–C60. It is concluded that tunneling rotation of the CH4 and CD4 molecules occupying interstitial positions in the fullerite C60 lattice occurs. © 2009, American Institute of Physics |
| URI: | http://dx.doi.org/10.1063/1.3081155 http://apo.ansto.gov.au/dspace/handle/10238/3030 |
| ISSN: | 1063-777X |
| Appears in Collections: | Journal Articles |
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