Projects per year
Abstract
We have investigated tunneling current through a suspended graphene Corbino disk in high magnetic fields at the Dirac point, i.e. at filling factor ν = 0. At the onset of the dielectric breakdown the current through the disk grows exponentially before ohmic behaviour, but in a manner distinct from thermal activation. We find that Zener tunneling between Landau sublevels dominates, facilitated by tilting of the source-drain bias potential. According to our analytic modelling, the Zener tunneling is strongly affected by the gyrotropic force (Lorentz force) due to the high magnetic field.
Original language | English |
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Article number | 594 |
Pages (from-to) | 1-10 |
Journal | Scientific Reports |
Volume | 8 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1 Dec 2018 |
MoE publication type | A1 Journal article-refereed |
Fingerprint
Dive into the research topics of 'Gyrotropic Zener tunneling and nonlinear IV curves in the zero-energy Landau level of graphene in a strong magnetic field'. Together they form a unique fingerprint.Projects
- 1 Finished
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QuDeT: Quantum devices in topological matter: carbon nanotubes, graphene, and novel superfluids
Hakonen, P. (Principal investigator)
05/11/2015 → 31/12/2021
Project: EU: ERC grants
Equipment
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OtaNano – Low Temperature Laboratory
Savin, A. (Manager) & Rissanen, A. (Other)
OtaNanoFacility/equipment: Facility