Roshan Krishna Kumar
Roshan Krishna Kumar
Institute of Photonic Sciences
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High electron mobility, quantum Hall effect and anomalous optical response in atomically thin InSe
DA Bandurin, AV Tyurnina, LY Geliang, A Mishchenko, V Zólyomi, ...
Nature nanotechnology 12 (3), 223-227, 2017
Negative local resistance caused by viscous electron backflow in graphene
DA Bandurin, I Torre, RK Kumar, MB Shalom, A Tomadin, A Principi, ...
Science 351 (6277), 1055-1058, 2016
Superballistic flow of viscous electron fluid through graphene constrictions
RK Kumar, DA Bandurin, FMD Pellegrino, Y Cao, A Principi, H Guo, ...
Nature Physics 13 (12), 1182-1185, 2017
Measuring Hall viscosity of graphene’s electron fluid
AI Berdyugin, SG Xu, FMD Pellegrino, RK Kumar, A Principi, I Torre, ...
Science 364 (6436), 162-165, 2019
Fluidity onset in graphene
DA Bandurin, AV Shytov, LS Levitov, RK Kumar, AI Berdyugin, ...
Nature communications 9 (1), 1-8, 2018
High-temperature quantum oscillations caused by recurring Bloch states in graphene superlattices
RK Kumar, X Chen, GH Auton, A Mishchenko, DA Bandurin, SV Morozov, ...
Science 357 (6347), 181-184, 2017
Graphene ballistic nano-rectifier with very high responsivity
G Auton, J Zhang, RK Kumar, H Wang, X Zhang, Q Wang, E Hill, A Song
Nature communications 7 (1), 1-6, 2016
Giant oscillations in a triangular network of one-dimensional states in marginally twisted graphene
SG Xu, AI Berdyugin, P Kumaravadivel, F Guinea, RK Kumar, ...
Nature communications 10 (1), 1-5, 2019
Excess resistivity in graphene superlattices caused by umklapp electron–electron scattering
JR Wallbank, RK Kumar, M Holwill, Z Wang, GH Auton, J Birkbeck, ...
Nature Physics 15 (1), 32-36, 2019
Control of electron-electron interaction in graphene by proximity screening
M Kim, SG Xu, AI Berdyugin, A Principi, S Slizovskiy, N Xin, ...
Nature communications 11 (1), 1-6, 2020
High-order fractal states in graphene superlattices
RK Kumar, A Mishchenko, X Chen, S Pezzini, GH Auton, ...
Proceedings of the National Academy of Sciences 115 (20), 5135-5139, 2018
Out-of-equilibrium criticalities in graphene superlattices
AI Berdyugin, N Xin, H Gao, S Slizovskiy, Z Dong, S Bhattacharjee, ...
Science 375 (6579), 430-433, 2022
Nano-imaging photoresponse in a moiré unit cell of minimally twisted bilayer graphene
NCH Hesp, I Torre, D Barcons-Ruiz, HH Sheinfux, K Watanabe, ...
Nature communications 12 (1), 1-8, 2021
Long-range ballistic transport of Brown-Zak fermions in graphene superlattices
J Barrier, P Kumaravadivel, RK Kumar, LA Ponomarenko, N Xin, M Holwill, ...
Nature communications 11 (1), 1-7, 2020
Strong magnetophonon oscillations in extra-large graphene
P Kumaravadivel, MT Greenaway, D Perello, A Berdyugin, J Birkbeck, ...
Nature communications 10 (1), 1-6, 2019
Minibands in twisted bilayer graphene probed by magnetic focusing
AI Berdyugin, B Tsim, P Kumaravadivel, SG Xu, A Ceferino, A Knothe, ...
Science Advances 6 (16), eaay7838, 2020
Photocurrent as a multiphysics diagnostic of quantum materials
Q Ma, R Krishna Kumar, SY Xu, FHL Koppens, JCW Song
Nature Reviews Physics, 1-15, 2023
Scaling approach to tight-binding transport in realistic graphene devices: The case of transverse magnetic focusing
M Beconcini, S Valentini, RK Kumar, GH Auton, AK Geim, ...
Physical Review B 94 (11), 115441, 2016
Graphene Triangular Ballistic Rectifier: Fabrication and Characterisation
G Auton, RK Kumar, E Hill, A Song
Journal of Electronic Materials 46 (7), 3942-3948, 2017
Magnetophonon spectroscopy of Dirac fermion scattering by transverse and longitudinal acoustic phonons in graphene
MT Greenaway, RK Kumar, P Kumaravadivel, AK Geim, L Eaves
Physical Review B 100 (15), 155120, 2019
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Articles 1–20