Oscillating Magnetoresistance in Graphene p-n Junctions at Intermediate Magnetic Fields.
basic_science · Level V
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- Record sourced from PubMed, PMID 28383919.
- Also identified by DOI 10.1021/acs.nanolett.6b05318.
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Abstract
We report on the observation of magnetoresistance oscillations in graphene p-n junctions. The oscillations have been observed for six samples, consisting of single-layer and bilayer graphene, and persist up to temperatures of 30 K, where standard Shubnikov-de Haas oscillations are no longer discernible. The oscillatory magnetoresistance can be reproduced by tight-binding simulations. We attribute this phenomenon to the modulated densities of states in the n- and p-regions.