The effect of the noncentral impurity-matrix interaction upon the thermal expansion and polyamorphism of solid CO–C₆₀ solutions at low temperatures
Orientational glasses with CO molecules occupying 26 and 90% of the octahedral interstitial sites in the C₆₀ lattice have been investigated by the dilatometric method in a temperature interval of 2.5–22 K. At temperatures 4–6 K the glasses undergo a first-order phase transition which is evident fr...
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| Datum: | 2008 |
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| Hauptverfasser: | , , , , , , , , |
| Format: | Artikel |
| Sprache: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2008
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| Schriftenreihe: | Физика низких температур |
| Schlagworte: | |
| Online Zugang: | http://dspace.nbuv.gov.ua/handle/123456789/116979 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | The effect of the noncentral impurity-matrix interaction upon the thermal expansion and polyamorphism of solid CO–C₆₀ solutions at low temperatures / A.V. Dolbin, V.B. Esel’son, V.G. Gavrilko, V.G. Manzhelii, N.A. Vinnikov, G.E. Gadd, S. Moricca, D. Cassidy, B. Sundqvist // Физика низких температур. — 2008. — Т. 34, № 6. — С. 592–598. — Бібліогр.: 23 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | Orientational glasses with CO molecules occupying 26 and 90% of the octahedral interstitial sites in the
C₆₀ lattice have been investigated by the dilatometric method in a temperature interval of 2.5–22 K. At temperatures
4–6 K the glasses undergo a first-order phase transition which is evident from the hysteresis of the
thermal expansion and the maxima in the temperature dependences of the linear thermal expansion coefficients
α (T), and the thermalization times τ₁(T) of the samples. The effect of the noncentral CO–C₆₀ interaction
upon the thermal expansion and the phase transition in these glasses was clarified by comparing the behavior
of the properties of the CO–C₆₀ and N₂–C₆₀ solutions. |
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