Large magnetoresistance by Pauli blockade in hydrogenated graphene
Mesoscale and Nanoscale Physics
2018-04-25 v1
Abstract
We report the observation of a giant positive magnetoresistance in millimetre scale hydrogenated graphene with magnetic field oriented in the plane of the graphene sheet. A positive magnetoresistance in excess of 200\% at a temperature of 300 mK was observed in this configuration, reverting to negative magnetoresistance with the magnetic field oriented normal to the graphene plane. We attribute the observed positive, in-plane, magnetoresistance to Pauli-blockade of hopping conduction induced by spin polarization. Our work shows that spin polarization in concert with electron-electron interaction can play a dominant role in magnetotransport within an atomic monolayer.
Keywords
Cite
@article{arxiv.1802.08295,
title = {Large magnetoresistance by Pauli blockade in hydrogenated graphene},
author = {J. Guillemette and N. Hemsworth and A. Vlasov and J. Kirman and F. Mahvash and P. L. Lévesque and M. Siaj and R. Martel and G. Gervais and S. Studenikin and A. Sachrajda and T. Szkopek},
journal= {arXiv preprint arXiv:1802.08295},
year = {2018}
}
Comments
6 pages, 3 figures, and supplemental information