Intercalation of fullerite C60 with N2 molecules. An investigation by x-ray powder diffraction

Автор(и)

  • N.N. Galtsov B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47 Lenin Ave., Kharkov 61103, Ukraine
  • A.I. Prokhvatilov B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47 Lenin Ave., Kharkov 61103, Ukraine
  • G.N. Dolgova B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47 Lenin Ave., Kharkov 61103, Ukraine
  • D. Cassidy Australian Nuclear Science and Technology Organisation, Private Mail Bag 1, Manai, NSW 2234, Australia
  • G.E. Gadd Australian Nuclear Science and Technology Organisation, Private Mail Bag 1, Manai, NSW 2234, Australia
  • S. Moricca Australian Nuclear Science and Technology Organisation, Private Mail Bag 1, Manai, NSW 2234, Australia
  • B. Sundqvist Department of Experimental Physics, Umea University, S–901 87 Umea, Sweden

DOI:

https://doi.org/10.1063/1.2796156

Ключові слова:

fullerite C60, x-ray diffraction method, phase transitions, processes of orientational ordering.

Анотація

The lattice parameter a of fullerite C60 intercalated with N2 molecules is investigated in the temperature interval 6-295 K by x-ray diffraction. It is found that the interstitial molecular N2 has a considerable effect on both the temperatures, Tc of the orientational phase transition and Tg of the orientational glass formation. Hysteresis of a(T) has been detected in the Tc and Tg regions, besides, the abrupt change in the volume over the region defining Tc. Complete intercalation of C602 molecules results in a 0.2% increase in the lattice parameter, which persists over the whole temperature range. Evidence is also obtained that the interstitial guest molecular N2 induces a slight deformation of the cubic symmetry of the host C60 lattice.

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Опубліковано

2007-08-27

Як цитувати

(1)
Galtsov, N.; Prokhvatilov, A.; Dolgova, G.; Cassidy, D.; Gadd, G.; Moricca, S.; Sundqvist, B. Intercalation of Fullerite C60 With N2 Molecules. An Investigation by X-Ray Powder Diffraction. Fiz. Nizk. Temp. 2007, 33, 1159-1165.

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