Two-dimensional electron and hole gases at the surface of graphite

By S. Morozov, K. Novoselov, F. Schedin, D. Jiang, A. Firsov, A.K. Geim. 2005

160 citations recorded by the source corpus.

We report two-dimensional (2D) electron and hole gases induced at the surface of graphite by the electric field effect. The 2D gases reside within a few near-surface atomic layers and exhibit mobilities up to 15 000 and 60 000 cm(2)/V s at room and liquid-helium temperatures, respectively. The mobilities imply ballistic transport on mu m scale. Pronounced Shubnikov-de Haas oscillations reveal the existence of two types of charge carries in both electron and hole gases.

Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/f29b34fa52be68042f1f542c51c4d21e1ae9ee6d

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In Atomic and Molecular Physics, and Optics

In Materials Chemistry

Citations in the corpus

Synthesis of Graphene and Its Applications: A Review (2010, background): “33 FLG shows very high surface area, almost comparable to that of single-layer graphene.”
The electronic properties of graphene (2007, background): “The s reening length in the out of plane dire -tion is of about 2 graphene layers (Morozov et al., 2005).”
The rise of graphene. (2007, background): “The screening length in graphite is only ≈5Å (that is, less than 2 layers in thickness)(21) and, hence, one must differentiate between the surface and the bulk even for films as thin as 5 layers.(21,22) Earlier attempts to isolate graphene concentrated on chemical exfoliation.”
Fabrication of highly conducting and transparent graphene films (2010, background): “Due to its unusual physical and mechanical properties such as high carrier concentration and mobility [13] along with a room temperature quantum Hall effect [14], high thermal conductivity [15,16], and highest mechanical strength measured to date [17], it holds a number of promising applications [18”
Observation of Landau levels of Dirac fermions in graphite (2007, background): “The proximity of the tip causes an excess surface charge densit”