Optical Signatures of the Aharonov-Bohm Phase in Single-Walled Carbon Nanotubes

作者：S. Zaric, G. N. Ostojic, Junichiro Kono, Jonah Shaver, Valerie C. Moore, Michael S. Strano, Robert H. Hauge, R. E. Smalley, X. Wei · 发表于：Science · 年份：2004 · DOI：10.1126/science.1096524 · 被引用次数：332 · 研究领域：Carbon Nanotubes in Composites、Mechanical and Optical Resonators、Graphene research and applications

We report interband magneto-optical spectra for single-walled carbon nanotubes in high magnetic fields up to 45 tesla, confirming theoretical predictions that the band structure of a single-walled carbon nanotube is dependent on the magnetic flux phi threading the tube. We have observed field-induced optical anisotropy as well as red shifts and splittings of absorption and photoluminescence peaks. The amounts of shifts and splittings depend on the value of phi/phi(0) and are quantitatively consistent with theories based on the Aharonov-Bohm effect. These results represent evidence of the influence of the Aharonov-Bohm phase on the band gap of a solid.