Quantum spin hall effect on pseudo-graphene zigzag nanoribbons

Document Type : Reasearch Paper

Authors

1 Department of Physics, Qom Branch, Islamic Azad University, Qom, Iran.

2 Department of Physics, University of Qom, Qom, Iran.

Abstract

This research explores how two-dimensional honeycomb materials can be used in advanced electronics, focusing on zigzag honeycomb nanoribbons. These nanoribbons can create zero-energy band gaps, enabling helical spin current edge states. The study investigates the quantum spin Hall state, showcasing the adaptability of the Kane-Mele model in various honeycomb lattices. In addition to the theoretical discussions, this study presents a detailed Hamiltonian, performs band structure computations, and introduces a novel spin-filtering technique for zigzag nanoribbons. This method enhances our understanding of edge-localized quantum states and can revolutionize spintronics. By revealing the quantum states in honeycomb nanoribbons, this study contributes to the advancement of electronics and offers a promising path for highly efficient spin-based technologies.

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International Journal of Nano Dimension
Volume 15, Issue 1
January 2024
Pages 93-101

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