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Title
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Electronic properties of two-dimensional hexagonal germanium
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Author
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Abstract
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| The electronic properties of two-dimensional hexagonal germanium, so called germanene, are investigated using first-principles simulations. Consistent with previous reports, the surface is predicted to have a poor metallic behavior, i.e., being metallic with a low density of states at the Fermi level. It is found that biaxial compressively strained germanene is a gapless semiconductor with linear energy dispersions near the K pointslike graphene. The calculated Fermi velocity of germanene is almost independent of the strain and is about 1.7×106 m/s, quite comparable to the value in graphene. |
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Language
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English
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Source (journal)
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Applied physics letters / American Institute of Physics. - New York, N.Y., 1962, currens
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Publication
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New York, N.Y.
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American Institute of Physics
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2010
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ISSN
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0003-6951
[print]
1077-3118
[online]
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DOI
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10.1063/1.3332588
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Volume/pages
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96
:8
(2010)
, p. 082111,1-082111,3
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ISI
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000275027200044
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Full text (Publisher's DOI)
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