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Title: Resonant raman scattering of the smallest single-walled carbon nanotubes
Authors: Tang, Zi-Kang
Zhai, J. P.
Tong, Y. Y.
Hu, Xijun
Saito, R.
Feng, Y. J.
Sheng, Ping
Keywords: Single-walled carbon nanotubes
Raman scattering
AEL nanochannels
Issue Date: 25-Jul-2008
Citation: Physical review letters, v. 101, iss. 4, p. 047402, 2008
Abstract: We report optical properties of the smallest single-walled carbon nanotubes (SWNTs) with a diameter of only 3Å . 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.
Rights: Physical Review Letters © copyright 2008 American Physical Society. The journal's web site is located at
Appears in Collections:PHYS Journal/Magazine Articles
CBME Journal/Magazine Articles

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