Optical processes in single-walled carbon nanotubes threaded by a magnetic flux

J. Kono, S. Zaric, J. Shaver, X. Wei, S. A. Crooker, O. Portugall, G. L J A Rikken, R. H. Hauge, R. E. Smalley

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Single-walled carbon nanotubes threaded by a magnetic flux φ are predicted to posses novel magnetic and optical properties, critically depending on the value of φ/φ0 where φ0 is the magnetic flux quantum. This is a consequence of the Aharonov-Bohm phase 2πφ/φ0 influencing the boundary conditions on the Bloch wavefunctions. Here we report results of a series of magneto-optical studies of micelle-suspended single-walled carbon nanotubes in aqueous solutions in high magnetic fields. Their exotic magnetic properties manifest themselves in near-infrared magneto-absorption and magneto-photoluminescence spectra, including static and dynamic magnetic linear dichroism, splittings of exciton peaks, and field-induced band gap shrinkage. We show that these observations are quantitatively consistent with existing theories based on the Aharonov-Bohm effect.

Original languageEnglish (US)
Title of host publicationProceedings of the 8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2005
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages234-241
Number of pages8
ISBN (Print)9812568581, 9789812568588
DOIs
StatePublished - 2006
Event8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2005 - Hatoyama, Saitama, Japan
Duration: Aug 22 2005Aug 25 2005

Publication series

NameProceedings of the 8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2005

Other

Other8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2005
Country/TerritoryJapan
CityHatoyama, Saitama
Period8/22/058/25/05

Keywords

  • Aharonov-Bohm effect
  • Carbon nanotubes
  • Magnetic flux quantum

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