Effect of a perpendicular magnetic field on bilayer graphene under dual gating
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作者:
Saley, Mouhamadou Hassane
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机构:
Chouaib Doukkali Univ, Fac Sci, Lab Theoret Phys, POB 20, El Jadida 24000, MoroccoChouaib Doukkali Univ, Fac Sci, Lab Theoret Phys, POB 20, El Jadida 24000, Morocco
Saley, Mouhamadou Hassane
[1
]
El Mouhafid, Abderrahim
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机构:
Chouaib Doukkali Univ, Fac Sci, Lab Theoret Phys, POB 20, El Jadida 24000, MoroccoChouaib Doukkali Univ, Fac Sci, Lab Theoret Phys, POB 20, El Jadida 24000, Morocco
El Mouhafid, Abderrahim
[1
]
Jellal, Ahmed
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机构:
Chouaib Doukkali Univ, Fac Sci, Lab Theoret Phys, POB 20, El Jadida 24000, Morocco
Canadian Quantum Res Ctr, 204-3002 32 Ave, Vernon, BC V1T 2L7, CanadaChouaib Doukkali Univ, Fac Sci, Lab Theoret Phys, POB 20, El Jadida 24000, Morocco
Jellal, Ahmed
[1
,2
]
机构:
[1] Chouaib Doukkali Univ, Fac Sci, Lab Theoret Phys, POB 20, El Jadida 24000, Morocco
[2] Canadian Quantum Res Ctr, 204-3002 32 Ave, Vernon, BC V1T 2L7, Canada
AB-bilayer graphene;
Dual gates;
Magnetic field;
Landau levels;
Ballistic and diffusive transports;
Transmission;
Conductivity;
D O I:
10.1016/j.physe.2024.116077
中图分类号:
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
By studying the impact of a perpendicular magnetic field B on AB-bilayer graphene (AB-BLG) under dual gating, we yield several key findings for the ballistic transport of gate U-infinity. Firstly, we discover that the presence of B leads to a decrease in transmission. At a high value of B, we notice the occurrence of anti-Klein tunneling over a significant area. Secondly, in contrast to the results reported in the literature, where high peaks were found with an increasing in-plane pseudomagnetic field applied to AB-BLG, we find a decrease in conductivity as B increases. However, it is worth noting that in both cases, the number of oscillations decreases compared to the result in the study where no magnetic field was present (B = 0). Thirdly, at the neutrality point, we demonstrate that the conductivity decreases and eventually reaches zero for a high value of B, which contrasts with the result that the conductivity remains unchanged regardless of the value taken by the in-plane field. Finally, we consider the diffusive transport with gate U-infinity = 0.2 gamma(1) and observe two scenarios. The amplitude of conductivity oscillations increases with B for energy E less than U-infinity but decreases in the opposite case E > U-infinity.
机构:
Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R ChinaNanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
Wang, Yi-Xiang
Yang, Zhi
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机构:Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
Yang, Zhi
Xiong, Shi-Jie
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机构:Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
机构:
Univ Teknol Malaysia, Fac Elect Engn, Dept Elect Engn, Skudai 81310, Johor Darul Tak, MalaysiaUniv Teknol Malaysia, Fac Elect Engn, Dept Elect Engn, Skudai 81310, Johor Darul Tak, Malaysia
Saeidmanesh, M.
Ahmadi, M. T.
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机构:
Univ Teknol Malaysia, Fac Elect Engn, Dept Elect Engn, Skudai 81310, Johor Darul Tak, MalaysiaUniv Teknol Malaysia, Fac Elect Engn, Dept Elect Engn, Skudai 81310, Johor Darul Tak, Malaysia
Ahmadi, M. T.
Ghadiry, M.
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机构:
Univ Teknol Malaysia, Fac Elect Engn, Utm Johor Bahru 81310, Johor, MalaysiaUniv Teknol Malaysia, Fac Elect Engn, Dept Elect Engn, Skudai 81310, Johor Darul Tak, Malaysia
Ghadiry, M.
Akbari, E.
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Univ Teknol Malaysia, Fac Elect Engn, Dept Elect Engn, Skudai 81310, Johor Darul Tak, MalaysiaUniv Teknol Malaysia, Fac Elect Engn, Dept Elect Engn, Skudai 81310, Johor Darul Tak, Malaysia
Akbari, E.
Kiani, M. J.
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机构:
Univ Teknol Malaysia, Fac Elect Engn, Dept Elect Engn, Skudai 81310, Johor Darul Tak, MalaysiaUniv Teknol Malaysia, Fac Elect Engn, Dept Elect Engn, Skudai 81310, Johor Darul Tak, Malaysia
Kiani, M. J.
Ismail, Razali
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机构:
Univ Teknol Malaysia, Fac Elect Engn, Dept Elect Engn, Skudai 81310, Johor Darul Tak, MalaysiaUniv Teknol Malaysia, Fac Elect Engn, Dept Elect Engn, Skudai 81310, Johor Darul Tak, Malaysia
机构:
Univ Teknol Malaysia, Fac Elect Engn, Skudai 81310, Johor, Malaysia
Islamic Azad Univ, Yasooj Branch, Dept Elect Engn, Yasuj 7591483587, IranUniv Teknol Malaysia, Fac Elect Engn, Skudai 81310, Johor, Malaysia
Kiani, Mohammad Javad
Harun, F. K. Che
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机构:
Univ Teknol Malaysia, Fac Elect Engn, Skudai 81310, Johor, MalaysiaUniv Teknol Malaysia, Fac Elect Engn, Skudai 81310, Johor, Malaysia
Harun, F. K. Che
Saeidmanesh, M.
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机构:
Univ Teknol Malaysia, Fac Elect Engn, Skudai 81310, Johor, MalaysiaUniv Teknol Malaysia, Fac Elect Engn, Skudai 81310, Johor, Malaysia
Saeidmanesh, M.
Rahmani, M.
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机构:
Univ Teknol Malaysia, Fac Elect Engn, Skudai 81310, Johor, MalaysiaUniv Teknol Malaysia, Fac Elect Engn, Skudai 81310, Johor, Malaysia
Rahmani, M.
Parvizi, Afshin
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机构:
Islamic Azad Univ, Yasooj Branch, Dept Elect Engn, Yasuj 7591483587, IranUniv Teknol Malaysia, Fac Elect Engn, Skudai 81310, Johor, Malaysia
Parvizi, Afshin
Ahmadi, M. T.
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机构:
Univ Teknol Malaysia, Fac Elect Engn, Skudai 81310, Johor, Malaysia
Urmia Univ, Dept Elect Engn, Orumiyeh 57135, IranUniv Teknol Malaysia, Fac Elect Engn, Skudai 81310, Johor, Malaysia
机构:
Laboratory of Computational Physics,Institute of Applied Physics and Computational MathematicsState Key Laboratory for Superlattices and Microstructures,Institute of Semiconductors,Chinese Academy of Sciences
王志刚
李树深
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机构:
State Key Laboratory for Superlattices and Microstructures,Institute of Semiconductors,Chinese Academy of SciencesState Key Laboratory for Superlattices and Microstructures,Institute of Semiconductors,Chinese Academy of Sciences
李树深
张平
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机构:
Laboratory of Computational Physics,Institute of Applied Physics and Computational MathematicsState Key Laboratory for Superlattices and Microstructures,Institute of Semiconductors,Chinese Academy of Sciences