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

Research output: Contribution to journalArticlepeer-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 languageEnglish
Article number047402
JournalPhysical review letters
Volume101
Issue number4
DOIs
Publication statusPublished - 2008 Jul 25

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Resonant Raman scattering of the smallest single-walled carbon nanotubes'. Together they form a unique fingerprint.

Cite this