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Influence of dissol...
Influence of dissolved oxygen on the thermal expansion and polyamorphism of fullerite C60
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Dolbin, Alexander Vitoldovich (author)
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Vinnikov, N A (author)
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Gavrilko, V G (author)
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Esel'son, V B (author)
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Manzhelii, Vadim Grigorievich (author)
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- Sundqvist, Bertil (author)
- Umeå universitet,Institutionen för fysik
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(creator_code:org_t)
- AIP Publishing, 2007
- 2007
- English.
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In: Low temperature physics (Woodbury, N.Y., Print). - : AIP Publishing. - 1063-777X .- 1090-6517. ; 33:5, s. 465-471
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http://scitation.aip...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The temperature dependence of the coefficient of linear thermal expansion alpha of O-2-C-60 solutions with 20% and 80% filling of the octahedral cavities with oxygen is investigated in the temperature interval 2.2-24 K. Hysteresis of alpha(T) is observed, attesting to the coexistence of two orientational glasses in these solutions. A comparison of the behavior of these glasses is made. The characteristic times for reorientation of the C-60 molecules and for the phase transformations in the solutions are determined. When the temperature of the O-2-C-60 solution with 20 mol.% oxygen is increased to 450 degrees C, a chemical interaction of the oxygen with the C-60 molecules is manifested. It proves possible to separate the influences of the chemical and physical sorption of oxygen on the thermal expansion of polycrystalline fullerite C-60.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- Fullerenes
- C60
- thermal expansion
- polyamorphism
- orientational glass
- oxygen
- intercalation
- Condensed matter physics
- Kondenserade materiens fysik
Publication and Content Type
- ref (subject category)
- art (subject category)
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