activity
20152023
most citedNegative local resistance caused by viscous electron backflow in graphene

698 citations · 1.4k across the 9 of their papers we have counts for

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Showing cond-mat.mes-hallShow all

7 papers · 1 filter

cond-mat.mes-hall2023★ 57 cited

Giant ultra-broadband photoconductivity in twisted graphene heterostructures

Hitesh Agarwal, Krystian Nowakowski, Andres Forrer +12

The requirements for broadband photodetection are becoming exceedingly demanding in hyperspectral imaging. Whilst intrinsic photoconductor arrays based on mercury cadmium telluride…

cond-mat.mes-hall2021★ 9 cited

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…

cond-mat.mes-hall2019★ 73 cited

Control of electron-electron interaction in graphene by proximity screening

M. Kim, S. G. Xu, A. I. Berdyugin +14

Electron-electron interactions play a critical role in many condensed matter phenomena, and it is tempting to find a way to control them by changing the interactions' strength. One…

cond-mat.mes-hall2019★ 41 cited

Minibands in twisted bilayer graphene probed by magnetic focusing

A. I. Berdyugin, B. Tsim, P. Kumaravadivel +9

Magnetic fields force ballistic electrons injected from a narrow contact to move along skipping orbits and form caustics. This leads to pronounced resistance peaks at nearby voltag…

cond-mat.mes-hall2019★ 18 cited

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…

cond-mat.mes-hall2017★ 414 cited

Superballistic flow of viscous electron fluid through graphene constrictions

R. Krishna Kumar, D. A. Bandurin, F. M. D. Pellegrino +13

Electron-electron (e-e) collisions can impact transport in a variety of surprising and sometimes counterintuitive ways. Despite strong interest, experiments on the subject proved c…