Magnetotransport of a periodically modulated graphene monolayer

Details Magnetotransport of a periodically modulated graphene monolayer Magnetotransport of a periodically modulated graphene monolayer

2009-08-17

arxiv.org/abs/0908.2335v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

16 pages, 7 figures

Scientific paper

We have performed a detailed investigation of the electrical properties of a graphene monolayer which is modulated by a weak one dimensional periodic potential in the presence of a perpendicular magnetic field. The periodic modulation broadens the Landau Levels into bands which oscillate with B. The electronic conduction in this system can take place through either diffusive scattering or collisional scattering off impurities. Both these contributions to electronic transport are taken into account in this work. In addition to the appearance of commensurability oscillations in both the collisional and diffusive contributions, we find that Hall resistance also exhibits commensurability oscillations. Furthermore, the period and amplitude of these commensurability oscillations in the transport parameters and how they are affected by temperature are also discussed in this work.

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