Resonance Raman study of linear carbon chains formed by the heat treatment of double-wall carbon nanotubes

被引：83

作者：

Fantini, C. ^{[1
]}

Cruz, E.

Jorio, A.

Terrones, M.

Terrones, H.

Van Lier, G.

Charlier, J-C

Dresselhaus, M. S.

Saito, R.

Kim, Y. A.

Hayashi, T.

Muramatsu, H.

Endo, M.

Pimenta, M. A.

机构：

[1] Univ Fed Minas Gerais, Dept Fis, BR-30123970 Belo Horizonte, MG, Brazil

[2] IPICYT, Adv Mat Dept, San Luis Potosi 78216, Mexico

[3] Catholic Univ Louvain, PCPM & CERMIN, B-1348 Louvain, Belgium

[4] MIT, Cambridge, MA 02139 USA

[5] Tohoku Univ, Dept Phys, Aoba Ku, Sendai, Miyagi 9808578, Japan

[6] JST, CREST, Aoba Ku, Sendai, Miyagi 9808578, Japan

[7] Shinshu Univ, Fac Engn, Nagano 3808553, Japan

来源：

PHYSICAL REVIEW B | 2006年 / 73卷 / 19期

关键词：

D O I：

10.1103/PhysRevB.73.193408

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study the resonance behavior of the unusual Raman feature known as the coalescence-inducing mode (CIM), observed at similar to 1850 cm(-1), in samples of double-wall carbon nanotubes annealed at high temperatures. Resonance Raman spectra taken with different laser energies show that the intensity of the CIM band exhibits a maximum around 2.20 eV. By comparing the resonance Raman experimental results with first-principles calculations for the vibrational frequency and the energy gap, we propose that the CIM feature is associated with short carbon chains with an odd number of atoms, interconnecting the nanotube surfaces.

引用

页数：4

共 12 条

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