Conductance of WSe2 barrier through the silicene junctions

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Souratian Seyed Alireza; Rashidian Zeinab; Jahanbani Ardakani Khadijeh

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Journal: JOURNAL OF RESEARCH ON MANY BODY SYSTEMS Year:2020 | Volume:10 | Issue:3 Page(s): 25-34

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Title

Conductance of WSe2 barrier through the silicene junctions

Author(s)

Souratian Seyed Alireza | Rashidian Zeinab | Jahanbani Ardakani Khadijeh | Issue Writer Certificate

Keywords

SiliceneQ1

Transition Metal DichalcogenidesQ1

Landauer Buttiker Scattering FormulaQ1

Valley PolarizationQ1

Spin PolarizationQ1

Abstract

Charge carriers in Transition Metal Dichalcogenides have the charge, spin and valley degrees of freedom. In this paper, we investigate the electron transport properties through the 2 WSe junctions sandwiched between normal Silicene sheets in the presence of Zeeman spin ( s M ), valley ( v M ) exchange fields and an electric potential U. We have evaluated the spin and Valley Polarization and conduction using the Landauer-buttiker scattering formula. Our findings show that the conductivity of normal monolayer Silicene with intrinsic band gap in the presence of tungsten-diselneed barrier can be controlled by adjusting the Zeeman spin and valley fields. Spin and Valley Polarization is reported to be about 80%. Another result is that the valley switching can occur with adjusting the intensity of the spin and valley fields. We also show that increasing the length of the middle region, on account of the Klein tunneling phenomenon, cannot prevent passage of charge carriers and we have an oscillating current even for large length of the barrier region.

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APA: Copy

Souratian, Seyed Alireza, Rashidian, Zeinab, & Jahanbani Ardakani, Khadijeh. (2020). Conductance of WSe2 barrier through the silicene junctions. JOURNAL OF RESEARCH ON MANY BODY SYSTEMS, 10(3 ), 25-34. SID. https://sid.ir/paper/404867/en

Vancouver: Copy

Souratian Seyed Alireza, Rashidian Zeinab, Jahanbani Ardakani Khadijeh. Conductance of WSe2 barrier through the silicene junctions. JOURNAL OF RESEARCH ON MANY BODY SYSTEMS[Internet]. 2020;10(3 ):25-34. Available from: https://sid.ir/paper/404867/en

IEEE: Copy

Seyed Alireza Souratian, Zeinab Rashidian, and Khadijeh Jahanbani Ardakani, “Conductance of WSe2 barrier through the silicene junctions,” JOURNAL OF RESEARCH ON MANY BODY SYSTEMS, vol. 10, no. 3 , pp. 25–34, 2020, [Online]. Available: https://sid.ir/paper/404867/en

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