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

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

Dolbin, A.V. ; Esel'son, V.B. ; Gavrilko, V.G. ; Manzhelii, V.G. ; Popov, S.N. ; Vinnikov, N.A. ; Sundqvist, B.

Тема: Nanostructures and Impurity Centers in Cryogenic Environment

Інший ID: PACS: 65.80.–g, 81.07.De

URI: http://dspace.nbuv.gov.ua/handle/123456789/117034

Посилання: The low-temperature radial thermal expansion of single-walled carbon nanotube bundles saturated with nitrogen / A.V. Dolbin, V.B. Esel'son, V.G. Gavrilko, V.G. Manzhelii, S.N. Popov, N.A. Vinnikov, B. Sundqvist // Физика низких температур. — 2010. — Т. 36, № 5. — С. 465-469. — Бібліогр.: 21 назв. — англ.

Підтримка: The authors are indebted to Prof. V.M. Loktev for fruitful discussions and to the Science & Technology Center of Ukraine (STCU) for the financial support of the study (Project # 4266).

Дата: 2010

Завантажень: 631

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

Анотація:

The effect of a N₂ impurity on the radial thermal expansion coefficient αr of single-walled carbon nanotube bundles has been investigated in the temperature interval 2.2–43K by the dilatometric method. Saturation of nanotube bundles with N₂ caused a sharp increase in the positive magnitudes of αr in the whole temperature range used and a very high and wide maximum in the thermal expansion coefficient αr(T) at T~28 K. The lowtemperature 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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