Photon-assisted process and high-harmonic dynamic localization in graphene nanoribbons

dc.contributor.author	Musah, Rabiu
dc.date.accessioned	2021-10-26T10:20:46Z
dc.date.available	2021-10-26T10:20:46Z
dc.date.issued	2012
dc.identifier.issn	23105496
dc.identifier.uri	http://hdl.handle.net/123456789/6268
dc.description	10p:, ill.	en_US
dc.description.abstract	We used a complete tight-binding band structure of grapheme nanoribbon to obtain, for the first time, analytical techniques for observing photon assisted transport, and dynamic localization of electrons in the graphene nanoribbons. When the ribbons are subject to a multi-frequency dc-ac field, photon assisted replicas show up at rather strong drive force. The strong dependence of the photon peaks on ac amplitudes allow for high-harmonic dynamic oscillations at these amplitudes. We identified regions of positive differential conductivity where a nanoelectronic grapheme device may be operated as a small signal amplifier. Our research has also reveal another quantum mechanical phenomenon, fractional photon assisted transport, when the stark factor r > 1	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	Negative differential conductivity	en_US
dc.title	Photon-assisted process and high-harmonic dynamic localization in graphene nanoribbons	en_US
dc.type	Article	en_US