Optical signatures of the Aharonov-Bohm phase in single-walled carbon nanotubes

Sasa Zaric, Gordana N. Ostojic, Junichiro Kono, Jonah Shaver, Valerie C. Moore, Michael S. Strano, Robert H. Hauge, Richard E. Smalley, Xing Wei

Research output: Contribution to journalArticlepeer-review

263 Scopus citations

Abstract

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 φ 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 φ/φ0 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.

Original languageEnglish (US)
Pages (from-to)1129-1131
Number of pages3
JournalScience
Volume304
Issue number5674
DOIs
StatePublished - May 21 2004

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