Universal mobility characteristics of graphene originating from charge scattering by ionised impurities

Graphene exhibits both extremely high electrical conductivity and electron mobility but an incomplete understanding of the underlying mechanisms so far limits potential applications in electrical devices. Here, the authors theoretically and experimentally investigate the role of charged impurities a...

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Autores principales: Jonathan H. Gosling, Oleg Makarovsky, Feiran Wang, Nathan D. Cottam, Mark T. Greenaway, Amalia Patanè, Ricky D. Wildman, Christopher J. Tuck, Lyudmila Turyanska, T. Mark Fromhold
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/480032827d8a4e34bd61dae704ba41e5
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Sumario:Graphene exhibits both extremely high electrical conductivity and electron mobility but an incomplete understanding of the underlying mechanisms so far limits potential applications in electrical devices. Here, the authors theoretically and experimentally investigate the role of charged impurities and optical phonons on the conductivity properties of graphene and establish a universal connection between the mobility and conductivity.