The low temperature thermal expansion of single-walled carbon nanotube bundles saturated with nitrogen

Details The low temperature thermal expansion of single-walled carbon nanotube bundles saturated with nitrogen The low temperature thermal expansion of single-walled carbon nanotube bundles saturated with nitrogen

2010-01-18

arxiv.org/abs/1001.2992v1

Fiz.Nizk Temp., v. 36, No. 5, p. 465-469 (2010)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

10 pages, 5 figures, will be published in Fiz.Nizk Temp. #5, 2009

Scientific paper

10.1063/1.1542277

The effect of a N2 impurity on the radial thermal expansion coefficient (ar) of single-walled carbon nanotube bundles has been investigated in the temperature interval 2.2 - 43 K by the dilatometric method. Saturation of nanotube bundles with N2 caused a sharp increase in the positive magnitudes of ar in the whole range of temperatures used and a very high and wide maximum in the thermal expansion coefficient (ar)(T) at T about 28 K. The low temperature desorption of the impurity from the N2-saturated powder of bundles of single-walled carbon nanotubes with open and closed ends has been investigated.

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