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Negative high-harmonic differential conductivity in graphene nanoribbons

Show simple item record Rabiu, M. Mensah, S. Y. Abukari, S. S. 2021-10-25T12:39:39Z 2021-10-25T12:39:39Z 2012
dc.identifier.issn 23105496
dc.description 12p:, ill. en_US
dc.description.abstract We theoretically study current dynamics of graphene nanoribbons subject to bias and ac driven fields. We showed that graphene nanoribbons exhibit negative high-harmonic differential conductivity. Negative differential conductivity appears when bias electric filed is in the neighborhood of applied ac filed amplitude. We also observe both even and odd high-harmonic negative differential conductivity at wave mixing of two commensurate frequencies. The even harmonics are more pronounced than the odd harmonics. A possible use of the present method for generating terahartz frequencies at even harmonics in graphene is suggested en_US
dc.language.iso en en_US
dc.publisher University of Cape Coast en_US
dc.subject Graphene en_US
dc.subject Current density en_US
dc.subject Bessel function en_US
dc.subject Bloch oscillations en_US
dc.subject Negative differential conductivity en_US
dc.title Negative high-harmonic differential conductivity in graphene nanoribbons en_US
dc.type Article en_US

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