Electron-Hole Puddles In The Absence Of Charged Impurities

PHYSICAL REVIEW B, no. 20 (2012)

Cited: 76|Views23

Abstract

It is widely believed that carrier-density inhomogeneities ("electron-hole puddles") in single-layer graphene on a substrate such as quartz are due to charged impurities located close to the graphene sheet. Here we demonstrate by using a Kohn-Sham-Dirac density-functional scheme that corrugations in a real sample are sufficient to determi...More

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