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ID 14259
file
creator
Maniwa, Yutaka
Fujiwara, Ryuji
Kira, Hiroshi
Tou, Hideki
Kataura, Hiromichi
Suzuki, Shinzo
Achiba, Yohji
Nishibori, Eiji
Takata, Masaki
Sakata, Makoto
Fujiwara, Akihiko
Suematsu, Hiroyoshi
NDC
Physics
abstract
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.
journal title
Physical review. B
volume
Volume 64
issue
Issue 24
start page
241402-1
end page
241402-3
date of issued
2001-12-15
publisher
The American Physical Society
issn
1098-0121
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2001 The American Physical Society
relation is version of URL
http://dx.doi.org/10.1103/PhysRevB.64.241402
department
Graduate School of Advanced Sciences of Matter