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Year: | 2004 | ||||
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Type of Publication: | Article | ||||||
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Journal: | Science | Volume: | 304 | ||||
Number: | 5674 | Pages: | 1129-1131 | ||||
Month: | MAY 21 2004 | ||||||
Note: | PT: J; TC: 193; UT: WOS:000221524500034 |
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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 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. |
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