Resonant Raman scattering of the smallest single-walled carbon nanotubes

Z. K. Tang; J. P. Zhai; Y. Y. Tong; X. J. Hu; R. Saito; Y. J. Feng; Ping Sheng

doi:10.1103/PhysRevLett.101.047402

Resonant Raman scattering of the smallest single-walled carbon nanotubes

Z. K. Tang, J. P. Zhai, Y. Y. Tong, X. J. Hu, R. Saito, Y. J. Feng, Ping Sheng

SCI - Physics

Research output: Contribution to journal › Article › peer-review

56 Citations (Scopus)

Abstract

We report optical properties of the smallest single-walled carbon nanotubes (SWNTs) with a diameter of only 3 Å. These ultrasmall SWNTs are fabricated in the elliptical nanochannels of an AlPO-11 (AEL) single crystal. Polarized and resonant Raman scattering unambiguously revealed that these 0.3 nm SWNTs are of (2,2) armchair symmetry. Interestingly, the (2,2) armchair tube has two metastable ground states corresponding to two slightly different lattice constants in the axial direction: one state is metallic and the other is semiconducting.

Original language	English
Article number	047402
Journal	Physical review letters
Volume	101
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevLett.101.047402
Publication status	Published - 2008 Jul 25

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.101.047402

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title = "Resonant Raman scattering of the smallest single-walled carbon nanotubes",

abstract = "We report optical properties of the smallest single-walled carbon nanotubes (SWNTs) with a diameter of only 3 {\AA}. These ultrasmall SWNTs are fabricated in the elliptical nanochannels of an AlPO-11 (AEL) single crystal. Polarized and resonant Raman scattering unambiguously revealed that these 0.3 nm SWNTs are of (2,2) armchair symmetry. Interestingly, the (2,2) armchair tube has two metastable ground states corresponding to two slightly different lattice constants in the axial direction: one state is metallic and the other is semiconducting.",

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AU - Tang, Z. K.

AU - Zhai, J. P.

AU - Tong, Y. Y.

AU - Hu, X. J.

AU - Saito, R.

AU - Feng, Y. J.

AU - Sheng, Ping

PY - 2008/7/25

Y1 - 2008/7/25

N2 - We report optical properties of the smallest single-walled carbon nanotubes (SWNTs) with a diameter of only 3 Å. These ultrasmall SWNTs are fabricated in the elliptical nanochannels of an AlPO-11 (AEL) single crystal. Polarized and resonant Raman scattering unambiguously revealed that these 0.3 nm SWNTs are of (2,2) armchair symmetry. Interestingly, the (2,2) armchair tube has two metastable ground states corresponding to two slightly different lattice constants in the axial direction: one state is metallic and the other is semiconducting.

AB - We report optical properties of the smallest single-walled carbon nanotubes (SWNTs) with a diameter of only 3 Å. These ultrasmall SWNTs are fabricated in the elliptical nanochannels of an AlPO-11 (AEL) single crystal. Polarized and resonant Raman scattering unambiguously revealed that these 0.3 nm SWNTs are of (2,2) armchair symmetry. Interestingly, the (2,2) armchair tube has two metastable ground states corresponding to two slightly different lattice constants in the axial direction: one state is metallic and the other is semiconducting.

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Resonant Raman scattering of the smallest single-walled carbon nanotubes

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