Metal-semiconductor (semimetal) superlattices on a graphite sheet with vacancies
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- Chernozatonskii, L.A., Sorokin, P.B., Belova, E.É. et al. Jetp Lett. (2006) 84: 115. doi:10.1134/S0021364006150033
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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.