Spin-dependent electron transmission across the corrugated graphene

TL;DR

This paper investigates how ripples in graphene affect spin-dependent electron transmission, revealing that superlattice structures can selectively suppress transmission based on electron spin orientation.

Contribution

It introduces a detailed analysis of spin-dependent transmission in corrugated graphene and demonstrates the impact of ripple patterns on electron flow.

Findings

Spin dependence of transmission probability identified.

Superlattice ripples can suppress transmission for specific spins.

Transmission varies with ripple distribution and direction.

Abstract

We study various mechanisms of electron transmission across the corrugations in the graphene sheet. The spin dependence of the electron transmission probability in the rippled graphene is found. The electrons mean free path and transmission probabilities are analysed for different distributions of ripples in the graphene sheet as well. We demonstrate that the periodically repeated rippled graphene structure (the superlattice) leads to the suppression of the transmission of the ballistic electrons with one spin orientation in contrast to the other, depending on the direction of the incoming electron flow.