Negative high-harmonic differential conductivity in graphene nanoribbons

dc.contributor.author	Rabiu, M.
dc.contributor.author	Mensah, S. Y.
dc.contributor.author	Abukari, S. S.
dc.date.accessioned	2021-10-25T12:39:39Z
dc.date.available	2021-10-25T12:39:39Z
dc.date.issued	2012
dc.identifier.issn	23105496
dc.identifier.uri	http://hdl.handle.net/123456789/6242
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