Pregled bibliografske jedinice broj: 84612
Low-temperature specific heat of single-wall carbon nanotubes
Low-temperature specific heat of single-wall carbon nanotubes // Physical review. B, Condensed matter and materials physics, 65 (2002), 11; 113409, 4 doi:10.1103/PhysRevB.65.113409 (međunarodna recenzija, članak, znanstveni)
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Naslov
Low-temperature specific heat of single-wall carbon nanotubes
Autori
Lasjaunias, Jean-Claude ; Biljaković, Katica ; Beneš, Zdenek ; Fischer, E Jack ; Monceau, Pierre
Izvornik
Physical review. B, Condensed matter and materials physics (1098-0121) 65
(2002), 11;
113409, 4
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
nanotubes ; thermal properties ; adsorption
Sažetak
Previous low-temperature heat capacity measurements down to 2 K have been analyzed as resulting from one-dimensional quantum confinement of single-wall carbon nanotube (SWNT) vibrational modes [J. Hone et al., Science 289, 1730 (2000)]. We extended the measurements on SWNT ropes from the same preparation technique down to 0.1 K. The specific heat shows three contributions: a well-defined T/sup -2/ term from nuclear hyperfine interactions in ferromagnetic impurities and a monotonously varying vibrational contribution very sensitive to adsorbed gases, in particular /sup 4/He. In the best outgassing conditions, the specific heat yields the T/sup 3/ term originating from intertube coupling, in agreement with J. Hone et al. [Science 289, 1730 (2000)]. The third contribution follows sublinear, power-law T dependence. We discuss our results in relation to inelastic neutron scattering experiments.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
Uključenost u ostale bibliografske baze podataka::
- The INSPEC Science Abstracts series
