Ontology highlight
ABSTRACT:
SUBMITTER: Krishna Kumar R
PROVIDER: S-EPMC5960333 | biostudies-literature | 2018 May
REPOSITORIES: biostudies-literature
Krishna Kumar R R Mishchenko A A Chen X X Pezzini S S Auton G H GH Ponomarenko L A LA Zeitler U U Eaves L L Fal'ko V I VI Geim A K AK
Proceedings of the National Academy of Sciences of the United States of America 20180430 20
Graphene superlattices were shown to exhibit high-temperature quantum oscillations due to periodic emergence of delocalized Bloch states in high magnetic fields such that unit fractions of the flux quantum pierce a superlattice unit cell. Under these conditions, semiclassical electron trajectories become straight again, similar to the case of zero magnetic field. Here, we report magnetotransport measurements that reveal second-, third-, and fourth-order magnetic Bloch states at high electron den ...[more]