Aharonov-Bohm Oscillation and Chirality Effect in Optical Activity of Single Wall Carbon Nanotubes
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We study the Aharonov-Bohm effect in the optical phenomena of single wall carbon nanotubes (SWCN) and also their chirality dependence. Specially, we consider the natural optical activity as a proper observable and derive it's general expression based on a comprehensive symmetry analysis, which reveals the interplay between the enclosed magnetic flux and the tubule chirality for arbitrary chiral SWCN. A quantitative result for this optical property is given by a gauge invariant tight-binding approximation calculation to stimulate experimental measurements.
Submitted on 15 Jan 04, REVISED on 28 Apr 04, To appear in Phys. Rev. B(Brief Report)
Submitted on 15 Jan 04, REVISED on 28 Apr 04, To appear in Phys. Rev. B(Brief Report)