Abstract:
It has been found that periodically closely spaced vacancies on a~graphite sheet cause a~significant rearrangement of its electronic spectrum: metallic waveguides with a~high density of states near the Fermi level are formed along the vacancy lines. In the direction perpendicular to these lines, the spectrum exhibits a~semimetal or semiconductor character with a~gap where a~vacancy miniband is degenerated into impurity levels.
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