Spin-dependent transmission in curved graphene superlattice

• URL: http://arxiv.org/abs/2208.02220v2
• Date: Fri, 6 Jan 2023 08:47:54 GMT
• Title: Spin-dependent transmission in curved graphene superlattice
• Authors: Jaouad El-hassouny, Ahmed Jellal, El Houssine Atmani
• Abstract summary: We show that the number of cells acts by decreasing the transmissions with the same spin. It is determined that the degree and duration of suppression of the transmissions with the same spin over a range of energy are controllable using $d$.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We investigate spin-dependent transmission in a curved graphene superlattice of $N$ cells where each one is made up of four regions. The first is concave, and the third is convex, two arcs of circles separated by a distance $d$ from flat graphene sheets. The tunneling analysis allows us to determine all transmission and reflection channels associated with our system. As a result, we show that the number of cells acts by decreasing the transmissions with the same spin. We predict a solid spin-filtering effect when $d$ and $N$ are sufficiently large. Finally, it is determined that the degree and duration of suppression of the transmissions with the same spin over a range of energy are controllable using $d$.

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