Analysis of the low-temperature specific heat of multiwalled carbon nanotubes and carbon nanotube ropes

被引：127
|
作者：
Mizel, A [1 ]
Benedict, LX
Cohen, ML
Louie, SG
Zettl, A
Budraa, NK
Beyermann, WP
机构：
[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Sci Mat, Berkeley, CA 94720 USA
[3] Natl Inst Stand & Technol, Phys Lab, Opt Technol Div, Gaithersburg, MD 20899 USA
[4] Univ Calif Riverside, Dept Phys, Riverside, CA 92521 USA
来源：
PHYSICAL REVIEW B | 1999年 / 60卷 / 05期
关键词：
D O I：
10.1103/PhysRevB.60.3264
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We analyze specific-heat measurements in the temperature range 1<T<200 K for two types of carbon nanotube samples: multiwalled tubes and ropes of single-walled tubes. The multiwalled tube sample has a specific-heat not unlike that of graphite, which we maintain is reasonable given the structural similarities between the two materials. In contrast, the low-temperature specific-heat data for ropes are surprisingly large in magnitude and have surprisingly strong temperature dependence. We present model calculations that highlight the puzzling nature of these results and then suggest explanations. [S0163-1829(99)00129-0].
引用
收藏
页码：3264 / 3270
页数：7
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