Low-temperature specific heat of double wall carbon nanotubes

B. Xiang, C. B. Tsai, C. J. Lee, D. P. Yu, Y. Y. Chen

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

We report the analysis on the low-temperature specific heat of the double-walled carbon nanotubes (DWNTs) in the temperature range between 0.3 and 30 K, in comparison with that of the single-walled carbon nanotubes (SWNTs). The low-temperature specific heat of the SWNTs can be analyzed in terms of the acoustic phonon modes and the neighboring-tube interactions (αT3), which are in good agreement with earlier reports. The low-temperature specific heat of the DWNTs is smaller than that of the SWNTs. Taking account of the theoretical framework of the DWNT proposed by Damnjanovic et al. and the neighboring-tube interactions (CT3), the measured low-temperature specific heat of the DWNTs is well consistent with the theoretical predication. Our experimental results indicate that the neighboring-tube and intralayer interactions are not negligible in the low-temperature specific heat of the DWNTs.

Original languageEnglish
Pages (from-to)516-520
Number of pages5
JournalSolid State Communications
Volume138
Issue number10-11
DOIs
Publication statusPublished - 2006 Jun
Externally publishedYes

Bibliographical note

Funding Information:
Prof. Chen wants to thank the financial support from NSC 93-2112-M-001-022, Taiwan. B. Xiang is obliged to the visiting program financially and kind help during his stay in Institute of Physics, Academia Sinica, Taiwan. D.P. Yu is obliged to the financial support from the national 973 projects (No. 2002CB613505, MOST, People's Republic of China).

Keywords

  • A. Carbon nanotubes
  • B. Low-temperature specific heat
  • C. Shear modulus

ASJC Scopus subject areas

  • General Chemistry
  • Condensed Matter Physics
  • Materials Chemistry

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