The two classes of low-energy spectra in finite carbon nanotubes

URN to cite this document:: urn:nbn:de:bvb:355-epub-323882
DOI to cite this document:: 10.5283/epub.32388

Marganska, Magdalena ; Chudzinski, Piotr ; Grifoni, Milena

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Date of publication of this fulltext: 28 Aug 2015 08:39

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Abstract

We study the spectra of finite-length carbon nanotubes (CNTs) of arbitrary chirality. They divide into two classes, which arise because of different rotational symmetries of the low-energy eigenstates. In one of them (the zigzag class), the spinless spectrum is doubly degenerate and the two states can be assigned to different values of the valley degree of freedom. In the other (armchair class), ...