Thermal expansion of single-walled carbon nanotube (SWNT) bundles: X-ray diffraction studies

Physical review. B 64 巻 24 号 241402-1-241402-3 頁 2001-12-15 発行
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タイトル ( eng )
Thermal expansion of single-walled carbon nanotube (SWNT) bundles: X-ray diffraction studies
作成者
Maniwa Yutaka
Fujiwara Ryuji
Kira Hiroshi
Tou Hideki
Kataura Hiromichi
Suzuki Shinzo
Achiba Yohji
Nishibori Eiji
Takata Masaki
Sakata Makoto
Fujiwara Akihiko
Suematsu Hiroyoshi
収録物名
Physical review. B
64
24
開始ページ 241402-1
終了ページ 241402-3
抄録
Thermal expansion coefficient in single-walled carbon nanotube bundles was determined as (-0.15±0.20)×10-5 (1/K) for the tube diameter and (0.75±0.25)×10-5 (1/K) for the triangular lattice constant by means of x-ray scattering between 300 K to 950 K. The value for the intertube gap was (4.2±1.4)×10-5 (1/K), which is larger than 2.6×10-5 (1/K) for the c-axis thermal expansion in graphite. The results reveal the presence of a remarkably larger lattice anharmonicity in nanotube bundles than that of graphite. The small value for the tube diameter is consistent with the seamless tube structure formed by a strong covalent bond between carbon atoms comparable to that in graphite.
NDC分類
物理学 [ 420 ]
言語
英語
資源タイプ 学術雑誌論文
出版者
The American Physical Society
発行日 2001-12-15
権利情報
Copyright (c) 2001 The American Physical Society
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 1098-0121
[DOI] 10.1103/PhysRevB.64.241402
[DOI] http://dx.doi.org/10.1103/PhysRevB.64.241402 ~の異版である