Electronic transmission and conductance oscillations in electrostatic multibarrier system based on graphene monolayer

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dc.authoridUngan, Fatih/0000-0003-3533-4150
dc.authoridBelhadj, Walid/0000-0003-1979-0324
dc.authoridAlsalmi, Omar/0000-0002-6143-7009
dc.contributor.authorAlsalmi, Omar H.
dc.contributor.authorDakhlaoui, Hassen
dc.contributor.authorBelhadj, Walid
dc.contributor.authorUngan, Fatih
dc.date.accessioned2024-10-26T18:07:27Z
dc.date.available2024-10-26T18:07:27Z
dc.date.issued2023
dc.departmentSivas Cumhuriyet Üniversitesi
dc.description.abstractThe Landauer-Buttiker formalism and the transfer matrix method (TMM) were used to solve the Dirac equation to theoretically explore the transmission coefficient and the conductance of multibarrier graphene systems (MGS). We have addressed the impact of the number of barriers, angle of incidence, and the quantum size of different layers on the electronic properties. The obtained results show that the conductance and the transmission of the carriers can be readily modulated by increasing the number of barriers. It has been observed that an increase in the number of barriers doubles the number of resonant states which leads to the emergence of energetic minibands alternating with minigaps. Furthermore, we found that after doubling the quantum wells the number of resonant states and minigaps increase and their shapes become well defined. Moreover, we considered two cases of incidence (oblique and normal). In the normal incidence case, the structures were completely transparent for different sizes and incident energy values. However, for high angles of incidence, the transmission coefficient presented sharper resonant peaks separated by minigaps. Thereby, according to our theoretical investigations, such structures can be useful for modulating the electronic properties of devices based on electrostatic MGS.
dc.description.sponsorshipDeanship of Scientific Research at Umm Al-Qura University [22UQU4331235DSR01]
dc.description.sponsorshipAcknowledgmentsThe authors would like to thank the Deanship of Scientific Research at Umm Al-Qura University for supporting this work by Grant Code: (22UQU4331235DSR01).
dc.identifier.doi10.1088/1402-4896/acdb06
dc.identifier.issn0031-8949
dc.identifier.issn1402-4896
dc.identifier.issue7
dc.identifier.scopus2-s2.0-85162107041
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1088/1402-4896/acdb06
dc.identifier.urihttps://hdl.handle.net/20.500.12418/29514
dc.identifier.volume98
dc.identifier.wosWOS:001003427400001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherIop Publishing Ltd
dc.relation.ispartofPhysica Scripta
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectDirac equation
dc.subjectmonolayer graphene
dc.subjecttransmission coefficient
dc.subjectconductance
dc.subjecttransfer matrix method
dc.titleElectronic transmission and conductance oscillations in electrostatic multibarrier system based on graphene monolayer
dc.typeArticle

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