Amplification of acoustic waves in armchair graphene nanoribbon in the presence of external electric and magnetic field

dc.contributor.author	Dompreh, K. A.
dc.contributor.author	Mensah, S. Y.
dc.contributor.author	Abukari, S. S.
dc.contributor.author	Sam, F.
dc.contributor.author	Mensah, N. G.
dc.date.accessioned	2021-10-04T11:36:56Z
dc.date.available	2021-10-04T11:36:56Z
dc.date.issued	2015
dc.identifier.issn	23105496
dc.identifier.uri	http://hdl.handle.net/123456789/6114
dc.description	16p:, ill.	en_US
dc.description.abstract	Amplification of Acoustic Waves in Armchair Graphene Nanoribbon (AGNR) in the presence of an external Electric and Magnetic field was studied using the Boltzmann’s kinetic equation. The general expression for the Amplification (Γ⊥/Γ0) was obtained in the region ql >> 1 for the energy dispersion ε(~) near the Fermi point. For various parameters of the quantized wave vector (β), the analysis of Γ⊥/Γ0 against the sub-bands index (pi); width of AGNR; and magnetic strength (Ωτ ), were numerically analyzed. The results showed a linear relation for Γ⊥/Γ0 with constant electric field (E~ ) but nonlinear for Γ⊥/Γ0 with q or Ωτ . Sound Amplification in AGNR is reported with an increase in Acoustic wave number (~) > 1.5 × 107 cm−1. This can cause SASER in Armchair Graphene Nanoribbon (AGNR).	en_US
dc.language.iso	en	en_US
dc.publisher	University of Cape Coast	en_US
dc.title	Amplification of acoustic waves in armchair graphene nanoribbon in the presence of external electric and magnetic field	en_US
dc.type	Article	en_US