Radial thermal expansion of pure and Xe-saturated bundles of single-walled carbon nanotubes at low temperatures
The radial thermal expansion coefficient ar of pure and Xe-saturated bundles of single-walled carbon nanotubes (CNT) has been measured in the interval 2.2-120 K. The coefficient is positive above T = 5.5 K and negative at lower temperatures. The experiment was made using a low-temperature capacitanc...
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| Published in: | Физика низких температур |
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| Date: | 2009 |
| Main Authors: | , , , , , , , |
| Format: | Article |
| Language: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2009
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/117250 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Radial thermal expansion of pure and Xe-saturated bundles of single-walled carbon nanotubes at low temperatures / A.V. Dolbin, V.B. Esel'son, V.G. Gavrilko, V.G. Manzhelii, S.N. Popov, N.A.Vinnikov, N.I. Danilenko, B. Sundqvist // Физика низких температур. — 2009. — Т. 35, № 6. — С. 613-621. — Бібліогр.: 50 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862720533882208256 |
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| author | Dolbin, A.V. Esel'son, V.B. Gavrilko, V.G. Manzhelii, V.G. Popov, S.N. Vinnikov, N.A. Danilenko, N.I. Sundqvist, B. |
| author_facet | Dolbin, A.V. Esel'son, V.B. Gavrilko, V.G. Manzhelii, V.G. Popov, S.N. Vinnikov, N.A. Danilenko, N.I. Sundqvist, B. |
| citation_txt | Radial thermal expansion of pure and Xe-saturated bundles of single-walled carbon nanotubes at low temperatures / A.V. Dolbin, V.B. Esel'son, V.G. Gavrilko, V.G. Manzhelii, S.N. Popov, N.A.Vinnikov, N.I. Danilenko, B. Sundqvist // Физика низких температур. — 2009. — Т. 35, № 6. — С. 613-621. — Бібліогр.: 50 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | The radial thermal expansion coefficient ar of pure and Xe-saturated bundles of single-walled carbon nanotubes (CNT) has been measured in the interval 2.2-120 K. The coefficient is positive above T = 5.5 K and negative at lower temperatures. The experiment was made using a low-temperature capacitance dilatometer with a sensitivity of 2·10⁻⁹ cm and the sample was prepared by compacting a CNT powder such that the pressure applied oriented the nanotube axes perpendicular to the axis of the cylindrical sample. The data show that individual nanotubes have a negative thermal expansion while the solid compacted material has a positive expansion coefficient due to expansion of the intertube volume in the bundles. Doping the nanotubes with Xe caused a sharp increase in the magnitude of ar in the whole range of temperatures used, and a peak in the dependence ar(T) in the interval 50-65 K. A subsequent decrease in the Xe concentration lowered the peak considerably but had little effect on the thermal expansion coefficient of the sample outside the region of the peak. The features revealed have been explained qualitatively.
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| first_indexed | 2025-12-07T18:26:25Z |
| format | Article |
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| id | nasplib_isofts_kiev_ua-123456789-117250 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-12-07T18:26:25Z |
| publishDate | 2009 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
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| spelling | Dolbin, A.V. Esel'son, V.B. Gavrilko, V.G. Manzhelii, V.G. Popov, S.N. Vinnikov, N.A. Danilenko, N.I. Sundqvist, B. 2017-05-21T16:26:56Z 2017-05-21T16:26:56Z 2009 Radial thermal expansion of pure and Xe-saturated bundles of single-walled carbon nanotubes at low temperatures / A.V. Dolbin, V.B. Esel'son, V.G. Gavrilko, V.G. Manzhelii, S.N. Popov, N.A.Vinnikov, N.I. Danilenko, B. Sundqvist // Физика низких температур. — 2009. — Т. 35, № 6. — С. 613-621. — Бібліогр.: 50 назв. — англ. 0132-6414 PACS: 74.70.Wz https://nasplib.isofts.kiev.ua/handle/123456789/117250 The radial thermal expansion coefficient ar of pure and Xe-saturated bundles of single-walled carbon nanotubes (CNT) has been measured in the interval 2.2-120 K. The coefficient is positive above T = 5.5 K and negative at lower temperatures. The experiment was made using a low-temperature capacitance dilatometer with a sensitivity of 2·10⁻⁹ cm and the sample was prepared by compacting a CNT powder such that the pressure applied oriented the nanotube axes perpendicular to the axis of the cylindrical sample. The data show that individual nanotubes have a negative thermal expansion while the solid compacted material has a positive expansion coefficient due to expansion of the intertube volume in the bundles. Doping the nanotubes with Xe caused a sharp increase in the magnitude of ar in the whole range of temperatures used, and a peak in the dependence ar(T) in the interval 50-65 K. A subsequent decrease in the Xe concentration lowered the peak considerably but had little effect on the thermal expansion coefficient of the sample outside the region of the peak. The features revealed have been explained qualitatively. We wish to thank Prof. V.M. Loktev for valuable discussion.
 The authors are indebted to the Science and Technology
 Center of Ukraine (STCU) for the financial support
 of this study (project No. 4266). en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Наноструктуры при низких температурах Radial thermal expansion of pure and Xe-saturated bundles of single-walled carbon nanotubes at low temperatures Article published earlier |
| spellingShingle | Radial thermal expansion of pure and Xe-saturated bundles of single-walled carbon nanotubes at low temperatures Dolbin, A.V. Esel'son, V.B. Gavrilko, V.G. Manzhelii, V.G. Popov, S.N. Vinnikov, N.A. Danilenko, N.I. Sundqvist, B. Наноструктуры при низких температурах |
| title | Radial thermal expansion of pure and Xe-saturated bundles of single-walled carbon nanotubes at low temperatures |
| title_full | Radial thermal expansion of pure and Xe-saturated bundles of single-walled carbon nanotubes at low temperatures |
| title_fullStr | Radial thermal expansion of pure and Xe-saturated bundles of single-walled carbon nanotubes at low temperatures |
| title_full_unstemmed | Radial thermal expansion of pure and Xe-saturated bundles of single-walled carbon nanotubes at low temperatures |
| title_short | Radial thermal expansion of pure and Xe-saturated bundles of single-walled carbon nanotubes at low temperatures |
| title_sort | radial thermal expansion of pure and xe-saturated bundles of single-walled carbon nanotubes at low temperatures |
| topic | Наноструктуры при низких температурах |
| topic_facet | Наноструктуры при низких температурах |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/117250 |
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