Login / Signup

Oscillating Magnetoresistance in Graphene p-n Junctions at Intermediate Magnetic Fields.

Hiske OverwegHannah EggimannMing-Hao LiuAnastasia VarletMarius EichPauline SimonetYongjin LeeKenji WatanabeTakashi TaniguchiKlaus RichterVladimir I Fal'koKlaus EnsslinThomas Ihn
Published in: Nano letters (2017)
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.
Keyphrases