Multiple magnetic barriers in graphene

By L. Dell’Anna, A. D. Martino. 2008

149 citations recorded by the source corpus.

We study the behavior of charge carriers in graphene in inhomogeneous perpendicular magnetic fields. We consider two types of one-dimensional magnetic profiles, uniform in one direction: a sequence of N magnetic barriers, and a sequence of alternating magnetic barriers and wells. In both cases, we compute the transmission coefficient of the magnetic structure by means of the transfer matrix formalism, and the associated conductance. In the first case the structure becomes increasingly transparent upon increasing N at fixed total magnetic flux. In the second case we find strong wave-vector filtering and resonant effects. We also calculate the band structure of a periodic magnetic superlattice, and find a wave-vector-dependent gap around zero-energy.

Subfields: Biomedical Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/26a2dcc2155905a4f73ea8a39baa69b52787ae64

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In Biomedical Engineering

1. Franco Nori
2. A. Rozhkov
3. K. Bliokh

In Materials Chemistry

1. G. Giavaras
2. Franco Nori
3. Y. Bliokh
4. V. Freilikher
5. A. Rozhkov

Citations in the corpus

• Electronic properties of mesoscopic graphene structures: Charge confinement and control of spin and charge transport (2011, background): “[150,212,213], charge carriers in graphene could be confined in space by applying a properly tailored static inhomogeneous magnetic field perpendicular to the graphene plane (x, y).”