Two Dimensional Electron and Hole Gases at the Surface of Graphite

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We report high-quality two-dimensional (2D) electron and hole gases induced at the surface of graphite by the electric field effect. The 2D carriers reside within a few near-surface atomic layers and exhibit mobilities up to 15,000 and 60,000 cm2/Vs at room and liquid-helium temperatures, respectively. The mobilities imply ballistic transport at micron scale. Pronounced Shubnikov-de Haas oscillations reveal the existence of two types of carries in both 2D electron and hole gases.
related to cond-mat/0410631 where preliminary data for this experimental system were reported

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Mesoscale and Nanoscale Physics, Materials Science

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http://salesiana.dossiersoluciones.com/handle/123456789/95863

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0505319
 http://arxiv.org/abs/cond-mat/0505319
 Phys. Rev. B - Rapid Comm. 72, 201401 (2005)
 doi:10.1103/PhysRevB.72.201401

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