Observation of electron–hole puddles in graphene using a scanning single-electron transistor
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Observation of electron–hole puddles in graphene using a scanning single-electron transistor
The electronic structure of graphene causes its charge carriers to behave like relativistic particles. For a perfect graphene sheet free from impurities and disorder, the Fermi energy lies at the so-called ‘Dirac point’, where the density of electronic states vanishes. But in the inevitable presence of disorder, theory predicts that equally probable regions of electron-rich and hole-rich puddle...
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ژورنال
عنوان ژورنال: Nature Physics
سال: 2007
ISSN: 1745-2473,1745-2481
DOI: 10.1038/nphys781