Fano factor in self-similar multibarrier structure based on graphene monolayer

2022 ◽  
Vol 131 (2) ◽  
pp. 024303
Author(s):  
M. Miniya ◽  
O. Oubram ◽  
A. G. El Hachimi ◽  
L. M. Gaggero-Sager
Keyword(s):  
Fano Factor ◽  
Graphene Monolayer ◽  
Self Similar

scholarly journals Quantum Tunneling Mechanisms in Monolayer Graphene Modulated by Multiple Electrostatic Barriers

2021 ◽  
Author(s):  
Hassen Dakhlaoui ◽  
Walid Belhadj ◽  
Bryan Wong
Keyword(s):  
Transmission Coefficient ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Optoelectronic Devices ◽  
Fano Factor ◽  
Monolayer Graphene ◽  
Graphene Monolayer ◽  
Applied Potential ◽  
Resonant States ◽  
Electronic Conductance

The transmission coefficient and electronic conductance of a graphene monolayer in the presence of multi-electrostatic barriers are theoretically investigated using the transfer matrix method (TMM). The transmission coefficient, conductance, and Fano factor are evaluated as a function of the number and width of the barriers, angle/energy of incidence, as well as the applied potential at each barrier. We find that the transmission coefficient presents a series of resonances that depends on the number and widths of the barriers. Furthermore, we show that the resonant states can be suppressed for larger incidence angles and barrier widths and tuned towards lower energies. Consequently, the proposed structure can be used to fabricate new optoelectronic devices based on (ON/OFF) states as tunable field-effect transistors.

scholarly journals Quantum Tunneling Characteristics in Monolayer Graphene Modulated by Multiple Electrostatic Barriers

2021 ◽  
Author(s):  
Hassen Dakhlaouhi ◽  
Walid Belhadj ◽  
Bryan Wong
Keyword(s):  
Transmission Coefficient ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Optoelectronic Devices ◽  
Fano Factor ◽  
Monolayer Graphene ◽  
Graphene Monolayer ◽  
Applied Potential ◽  
Resonant States ◽  
Electronic Conductance

The transmission coefficient and electronic conductance of a graphene monolayer in the presence of multi-electrostatic barriers are theoretically investigated using the transfer matrix method (TMM). The transmission coefficient, conductance, and Fano factor are evaluated as a function of the number and width of the barriers, angle/energy of incidence, as well as the applied potential at each barrier. We find that the transmission coefficient presents a series of resonances that depends on the number and widths of the barriers. Furthermore, we show that the resonant states can be suppressed for larger incidence angles and barrier widths and tuned towards lower energies. Consequently, the proposed structure can be used to fabricate new optoelectronic devices based on (ON/OFF) states as tunable field-effect transistors.

scholarly journals Quantum Tunneling Characteristics in Monolayer Graphene Modulated by Multiple Electrostatic Barriers

2021 ◽  
Author(s):  
Hassen Dakhlaouhi ◽  
Walid Belhadj ◽  
Bryan Wong
Keyword(s):  
Transmission Coefficient ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Optoelectronic Devices ◽  
Fano Factor ◽  
Monolayer Graphene ◽  
Graphene Monolayer ◽  
Applied Potential ◽  
Resonant States ◽  
Electronic Conductance

The transmission coefficient and electronic conductance of a graphene monolayer in the presence of multi-electrostatic barriers are theoretically investigated using the transfer matrix method (TMM). The transmission coefficient, conductance, and Fano factor are evaluated as a function of the number and width of the barriers, angle/energy of incidence, as well as the applied potential at each barrier. We find that the transmission coefficient presents a series of resonances that depends on the number and widths of the barriers. Furthermore, we show that the resonant states can be suppressed for larger incidence angles and barrier widths and tuned towards lower energies. Consequently, the proposed structure can be used to fabricate new optoelectronic devices based on (ON/OFF) states as tunable field-effect transistors.

Self-similar collapse with non-radial motions

2006 ◽  
Vol 20 ◽  
pp. 1-4
Author(s):  
A. Nusser
Keyword(s):  
Self Similar
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