1. Large magnetoresistance by Pauli blockade in hydrogenated graphene
- Author
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Guillemette, J., Hemsworth, N., Vlasov, A., Kirman, J., Mahvash, F., Lévesque, P. L., Siaj, M., Martel, R., Gervais, G., Studenikin, S., Sachrajda, A., and Szkopek, T.
- Subjects
Condensed Matter - Mesoscale and Nanoscale Physics - 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., Comment: 6 pages, 3 figures, and supplemental information
- Published
- 2018
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