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A magnetically-induced Coulomb gap in graphene due to electron-electron interactions
E. E. Vdovin, M. T. Greenaway, Yu. N. Khanin +9
Insights into the fundamental properties of graphene's Dirac-Weyl fermions have emerged from studies of electron tunnelling transistors in which an atomically thin layer of hexagon…
Room temperature quantum Hall effect in a gated ferroelectric-graphene heterostructure
Anubhab Dey, Nathan Cottam, Oleg Makarovskiy +10
The quantum Hall effect is widely used for the investigation of fundamental phenomena, ranging from topological phases to composite fermions. In particular, the discovery of a room…
Graphene's non-equilibrium fermions reveal Doppler-shifted magnetophonon resonances accompanied by Mach supersonic and Landau velocity effects
M. T. Greenaway, P. Kumaravadivel, J. Wengraf +6
Oscillatory magnetoresistance measurements on graphene have revealed a wealth of novel physics. These phenomena are typically studied at low currents. At high currents, electrons a…
Magnetophonon spectroscopy of Dirac Fermion scattering by transverse and longitudinal acoustic phonons in graphene
M. T. Greenaway, R. Krishna Kumar, P. Kumaravadivel +2
Recently observed magnetophonon resonances in the magnetoresistance of graphene are investigated using the Kubo formalism. This analysis provides a quantitative fit to the experime…
Tunnel spectroscopy of localised electronic states in hexagonal boron nitride
M. T. Greenaway, E. E. Vdovin, D. Ghazaryan +17
Hexagonal boron nitride (hBN) is a large band gap layered crystal, frequently incorporated in van der Waals (vdW) heterostructures as an insulating or tunnel barrier. Localised sta…
High-order fractal states in graphene superlattices
R. Krishna Kumar, A. Mishchenko, X. Chen +7
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 frac…