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Advanced filters: Author: Piranavan Kumaravadivel Clear advanced filters

Long-range ballistic transport of Brown-Zak fermions in graphene superlattices

Here, the authors show that Brown-Zak fermions in graphene-on-boron-nitride superlattices exhibit mobilities above 10⁶ cm²/V s and micrometer scale ballistic transport.

Julien Barrier
Piranavan Kumaravadivel
A. I. Berdyugin
ResearchOpen Access13 Nov 2020
Nature Communications

Volume: 11, P: 1-7
Giant magnetoresistance of Dirac plasma in high-mobility graphene

A Dirac plasma in high-mobility graphene shows anomalous magnetotransport and giant magnetoresistance that reaches more than 100 per cent in a low magnetic field at room temperature.

Na Xin
James Lourembam
Alexey I. Berdyugin
ResearchOpen Access12 Apr 2023
Nature

Volume: 616, P: 270-274
Extreme electron–hole drag and negative mobility in the Dirac plasma of graphene

The physics of charge transport in graphene becomes particularly interesting near the Dirac point. Here, the authors demonstrate a negative minority carrier mobility due to drag between majority and minority carriers in graphene at the charge neutrality point.

Leonid A. Ponomarenko
Alessandro Principi
Andre K. Geim
ResearchOpen Access14 Nov 2024
Nature Communications

Volume: 15, P: 1-6
Signatures of evanescent transport in ballistic suspended graphene-superconductor junctions

Piranavan Kumaravadivel
Xu Du
ResearchOpen Access15 Apr 2016
Scientific Reports

Volume: 6, P: 1-8
Micromagnetometry of two-dimensional ferromagnets

Graphene-based Hall magnetometers can be used to study the magnetization of two-dimensional ferromagnets.

M. Kim
P. Kumaravadivel
A. K. Geim
Research30 Sept 2019
Nature Electronics

Volume: 2, P: 457-463