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Thermal expansion of fullerite C60 alloyed with argon and neon

Aleksandrovskii, A.N. (author)
Gavrilko, V.G. (author)
Esel'son, V.B. (author)
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Manzhelii, V. G. (author)
Udovidchenko, B.G. (author)
Maletskiy, V.P. (author)
Sundqvist, Bertil (author)
Umeå universitet,Institutionen för fysik
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 (creator_code:org_t)
Woodbury : American Institute of Physics, 2001
2001
English.
In: Low temperature physics (Woodbury, N.Y., Print). - Woodbury : American Institute of Physics. - 1063-777X .- 1090-6517. ; 27:12, s. 1033-1036
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • The linear thermal expansion of compacted fullerite C60 alloyed with argon (ArxC60) and neon (NexC60) are investigated by a dilatometric method. The experimental temperature is 2–12 K. In the same temperature interval the thermal expansion of ArxC60 and NexC60 are examined after partial desaturation of the gases from fullerite. It is found that Ar and Ne alloying affects the temperature dependence of the thermal expansion coefficient of C60 quite appreciably. The libration and translation contributions to the thermal expansion of pure C60 are separated. The experimental results on the thermal expansion are used to obtain the Debye temperature of pure C60. The effects observed are tentatively interpreted.

Subject headings

NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)

Keyword

Fullerenes
C60
thermal expansion
low temperatures
negative thermal expansion
intercalation
noble gases
inert gases
Ne
Ar
Condensed matter physics
Kondenserade materiens fysik
fysik
Physics

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ref (subject category)
art (subject category)

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