Quantum phenomena in the radial thermal expansion of bundles of single-walled carbon nanotubes doped with ³He. A giant isotope effect
The radial thermal expansion αr of bundles of single-walled carbon nanotubes saturated with ³He up to the molar concentration 9.4% has been investigated in the temperature interval 2.1–9.5 K by high-sensitivity capacitance dilatometry. In the interval 2.1–7 K a negative αr was observed, with a magni...
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2011
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| Zitieren: | Quantum phenomena in the radial thermal expansion of bundles of single-walled carbon nanotubes doped with ³He. A giant isotope effect / A.V. Dolbin, V.B. Esel'son, V.G. Gavrilko, V.G. Manzhelii, N.A. Vinnikov, S.N. Popov, B. Sundqvist // Физика низких температур. — 2011. — Т. 37, № 6. — С. 685–687. — Бібліогр.: 16 назв. — англ. |
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Dolbin, A.V. Esel'son, V.B. Gavrilko, V.G. Manzhelii, V.G. Vinnikov, N.A. Popov, S.N. Sundqvist, B. 2017-05-30T16:58:30Z 2017-05-30T16:58:30Z 2011 Quantum phenomena in the radial thermal expansion of bundles of single-walled carbon nanotubes doped with ³He. A giant isotope effect / A.V. Dolbin, V.B. Esel'son, V.G. Gavrilko, V.G. Manzhelii, N.A. Vinnikov, S.N. Popov, B. Sundqvist // Физика низких температур. — 2011. — Т. 37, № 6. — С. 685–687. — Бібліогр.: 16 назв. — англ. 0132-6414 PACS: 64.70.Tg, 65.40.De, 65.60.+a, 65.80.–g https://nasplib.isofts.kiev.ua/handle/123456789/118589 The radial thermal expansion αr of bundles of single-walled carbon nanotubes saturated with ³He up to the molar concentration 9.4% has been investigated in the temperature interval 2.1–9.5 K by high-sensitivity capacitance dilatometry. In the interval 2.1–7 K a negative αr was observed, with a magnitude which exceeded the largest negative αr values of pure and ⁴He-saturated nanotubes by three and two orders of magnitude, respectively. The contributions of the two He isotope impurities to the negative thermal expansion of the nanotube bundles are most likely connected with the spatial redistribution of ⁴He and ³He atoms by tunneling at the surface and inside nanotube bundles. The isotope effect turned out to be huge, probably owing to the higher tunneling probability of ³He atoms. The authors are indebted to M.A. Strzhemechny and Yu.A. Freiman for fruitful discussions and to the National Academy of Sciences of Ukraine for the financial support of the study (Program “Fundamental problems of nanostructural systems, nanomaterials, nanotechnologies”, Project “The quantum phenomena in nanosystems and nanomaterials at low temperatures”). en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Краткие сообщения Quantum phenomena in the radial thermal expansion of bundles of single-walled carbon nanotubes doped with ³He. A giant isotope effect Article published earlier |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine |
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| title |
Quantum phenomena in the radial thermal expansion of bundles of single-walled carbon nanotubes doped with ³He. A giant isotope effect |
| spellingShingle |
Quantum phenomena in the radial thermal expansion of bundles of single-walled carbon nanotubes doped with ³He. A giant isotope effect Dolbin, A.V. Esel'son, V.B. Gavrilko, V.G. Manzhelii, V.G. Vinnikov, N.A. Popov, S.N. Sundqvist, B. Краткие сообщения |
| title_short |
Quantum phenomena in the radial thermal expansion of bundles of single-walled carbon nanotubes doped with ³He. A giant isotope effect |
| title_full |
Quantum phenomena in the radial thermal expansion of bundles of single-walled carbon nanotubes doped with ³He. A giant isotope effect |
| title_fullStr |
Quantum phenomena in the radial thermal expansion of bundles of single-walled carbon nanotubes doped with ³He. A giant isotope effect |
| title_full_unstemmed |
Quantum phenomena in the radial thermal expansion of bundles of single-walled carbon nanotubes doped with ³He. A giant isotope effect |
| title_sort |
quantum phenomena in the radial thermal expansion of bundles of single-walled carbon nanotubes doped with ³he. a giant isotope effect |
| author |
Dolbin, A.V. Esel'son, V.B. Gavrilko, V.G. Manzhelii, V.G. Vinnikov, N.A. Popov, S.N. Sundqvist, B. |
| author_facet |
Dolbin, A.V. Esel'son, V.B. Gavrilko, V.G. Manzhelii, V.G. Vinnikov, N.A. Popov, S.N. Sundqvist, B. |
| topic |
Краткие сообщения |
| topic_facet |
Краткие сообщения |
| publishDate |
2011 |
| language |
English |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| description |
The radial thermal expansion αr of bundles of single-walled carbon nanotubes saturated with ³He up to the molar concentration 9.4% has been investigated in the temperature interval 2.1–9.5 K by high-sensitivity capacitance dilatometry. In the interval 2.1–7 K a negative αr was observed, with a magnitude which exceeded the largest negative αr values of pure and ⁴He-saturated nanotubes by three and two orders of magnitude, respectively. The contributions of the two He isotope impurities to the negative thermal expansion of the nanotube bundles are most likely connected with the spatial redistribution of ⁴He and ³He atoms by tunneling at the surface and inside nanotube bundles. The isotope effect turned out to be huge, probably owing to the higher tunneling probability of ³He atoms.
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| issn |
0132-6414 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/118589 |
| citation_txt |
Quantum phenomena in the radial thermal expansion of bundles of single-walled carbon nanotubes doped with ³He. A giant isotope effect / A.V. Dolbin, V.B. Esel'son, V.G. Gavrilko, V.G. Manzhelii, N.A. Vinnikov, S.N. Popov, B. Sundqvist // Физика низких температур. — 2011. — Т. 37, № 6. — С. 685–687. — Бібліогр.: 16 назв. — англ. |
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2025-12-07T18:17:44Z |
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