J
J. C. Brant
Researcher at Universidade Federal de Minas Gerais
Publications - 18
Citations - 1269
J. C. Brant is an academic researcher from Universidade Federal de Minas Gerais. The author has contributed to research in topics: Graphene & Bilayer graphene. The author has an hindex of 11, co-authored 18 publications receiving 1078 citations. Previous affiliations of J. C. Brant include University of Groningen.
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Fast pick up technique for high quality heterostructures of bilayer graphene and hexagonal boron nitride
TL;DR: In this paper, a fast method to fabricate high quality heterostructure devices by picking up crystals of arbitrary sizes is presented, where a bilayer graphene is encapsulated with hexagonal boron nitride to demonstrate this approach.
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Probing the electronic structure of bilayer graphene by Raman scattering
Leandro M. Malard,Johan Nilsson,D. C. Elias,J. C. Brant,Flavio Plentz,E. S. Alves,A. H. Castro Neto,Marcos A. Pimenta +7 more
TL;DR: In this paper, the electronic structure of bilayer graphene was investigated from a resonant Raman study of the band using different laser excitation energies, revealing the difference of the effective masses of electrons and holes.
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Controlling spin relaxation in hexagonal BN-encapsulated graphene with a transverse electric field.
TL;DR: It is obtained that the ratio of the spin relaxation time for spins pointing out-of-plane to spins in-plane is τ(⊥)/τ(||) ≈ 0.75 for zero applied perpendicular electric field, and by tuning the electric field this anisotropy changes to 0.65 at 0.7 V/nm.
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Determination of LA and TO phonon dispersion relations of graphene near the Dirac point by double resonance Raman scattering
D. L. Mafra,Ge. G. Samsonidze,Ge. G. Samsonidze,Leandro M. Malard,D. C. Elias,J. C. Brant,Flavio Plentz,E. S. Alves,Marcos A. Pimenta +8 more
TL;DR: In this paper, the dispersion of the phonons involved in the double resonance Raman process in monolayer graphene has been analyzed using Raman spectroscopy, showing that the velocities of these phonons are 7.70 and 5.47, respectively.
Journal ArticleDOI
Fast pick up technique for high quality heterostructures of bilayer graphene and hexagonal boron nitride
TL;DR: In this paper, a fast method to fabricate high quality heterostructure devices by picking up crystals of arbitrary sizes is presented, where a bilayer graphene is encapsulated with hexagonal boron nitride to demonstrate this approach.