Metal-semiconductor (semimetal) superlattices on a graphite sheet with vacancies

Details Metal-semiconductor (semimetal) superlattices on a graphite sheet with vacancies Metal-semiconductor (semimetal) superlattices on a graphite sheet with vacancies

2006-11-13

arxiv.org/abs/cond-mat/0611334v1

JETP Letters (2006) vol. 84, #3 pp. 115-118

Physics

Condensed Matter

Materials Science

4 pages, 3 figures

Scientific paper

10.1134/S0021364006150033

It has been found that periodically closely spaced vacancies on a graphite sheet cause a significant rearrange-ment 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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