Low Temperature Physics: 33, 268 (2007); https://doi.org/10.1063/1.2719965 (4 pages)
Fizika Nizkikh Temperatur: Volume 33, Number 2-3 (February 2007), p. 359-363 ( to contents , go back )
Electrophysical properties of low-dimensional brominated carbon structures
T.I. Buryakov1,2, A.I. Romanenko1,2, O.B. Anikeeva1,2, A.V. Okotrub1, N.F. Yudanov1, and A.S. Kotosonov3
1Nonorganic Chemistry Institute of Sibirian Department of Russian Academy of Sciences, Acad. Lavrent'eva ave. 3, Novosibirsk 630090, Russia
2Novosibirsk state university, street. Pirogova, 2, Novosibirsk, 630090, Russia
3ФГУП"НИИГрафит", ул. Электродная, 2, г. Москва, 111524, Россия
Received September 22, 2006
The temperature dependences of resistivity r of a brominated material, which contains multiwalled carbon nanotubes, and brominated crystalline and pyrolitic graphites are investigated in the range of 4.2 to 700 K. The results are compared with r(T) of initial materials. The temperature dependences r(T) are investigated at different velocities of heating and cooling in helium and air atmospheres. It is found that the temperature dependences of brominated materials have unusual behaviors at temperatures above 390 K. An assumption, describing r(T) is proposed.
73.63.–b Electronic transport in nanoscale materials and structures ;
Key words: resistivity, carbon nanotubes, graphities.