Lo ST, Liu FH, Hsu CS, Chuang C, Huang LI, Fukuyama Y, Yang Y, Elmquist RE, Liang CT. Localization and electron-electron interactions in few-layer epitaxial graphene.
NANOTECHNOLOGY 2014;
25:245201. [PMID:
24872201 DOI:
10.1088/0957-4484/25/24/245201]
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Abstract
This paper presents a study of the quantum corrections caused by electron-electron interactions and localization to the conductivity in few-layer epitaxial graphene, in which the carriers responsible for transport are massive. The results demonstrate that the diffusive model, which can generally provide good insights into the magnetotransport of two-dimensional systems in conventional semiconductor structures, is applicable to few-layer epitaxial graphene when the unique properties of graphene on the substrate, such as intervalley scattering, are taken into account. It is suggested that magnetic-field-dependent electron-electron interactions and Kondo physics are required for obtaining a thorough understanding of magnetotransport in few-layer epitaxial graphene.
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