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arXiv · 2208.02220

Spin-dependent transmission in curved graphene superlattice

Jaouad El-hassouny·Ahmed Jellal·El Houssine Atmani
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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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Jaouad El-hassouny, Ahmed Jellal, El Houssine Atmani. 2023-01-06. Spin-dependent transmission in curved graphene superlattice. https://doi.org/10.1088/1402-4896%2Facb094

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