Phenolic profile and antioxidant capacity of selected medicinal and aromatic plants: Diversity upon plant species and extraction technique
Phenolic content and antioxidant capacity (AC) was evaluated in extracts of bay, sage and
thyme leaves, myrtle leaves and berries, and sea buckthorn berries obtained by …
thyme leaves, myrtle leaves and berries, and sea buckthorn berries obtained by …
Lévy flight for electrons in graphene: Superdiffusive-to-diffusive transport transition
DB Fonseca, LFC Pereira, ALR Barbosa - Physical Review B, 2023 - APS
In this paper we propose an electronic Lévy glass, analogous to a recent optical realization.
To that end, we investigate the transmission of electrons in graphene nanoribbons in the …
To that end, we investigate the transmission of electrons in graphene nanoribbons in the …
Relativistic quantum chaos—An emergent interdisciplinary field
The development of chaos theory has fundamentally changed our understanding of a large
variety of nonlinear dynamical phenomena. The question of what chaos can do to a …
variety of nonlinear dynamical phenomena. The question of what chaos can do to a …
Spin Hall angle in single-layer graphene
JM da Silva, FAF Santana, JGGS Ramos… - Journal of Applied …, 2022 - pubs.aip.org
We investigate the spin Hall effect in a single-layer graphene device with disorder and
interface-induced spin–orbit coupling. Our graphene device is connected to four semi …
interface-induced spin–orbit coupling. Our graphene device is connected to four semi …
Spin Hall angle fluctuations in a device with disorder
FAF Santana, JM Da Silva, TC Vasconcelos, J Ramos… - Physical Review B, 2020 - APS
We investigate a disorderly mesoscopic device that supports spin-orbit interaction. The
system is connected to four semi-infinite leads embedded in the Landauer-Buttiker setup for …
system is connected to four semi-infinite leads embedded in the Landauer-Buttiker setup for …
Universal spin Hall conductance fluctuations in chaotic Dirac quantum dots
TC Vasconcelos, J Ramos, ALR Barbosa - Physical Review B, 2016 - APS
We present complete analytical and numerical results that demonstrate the anomalous
universal fluctuations of the spin Hall conductance in chiral materials such as graphene and …
universal fluctuations of the spin Hall conductance in chiral materials such as graphene and …
Thermodynamic uncertainty relations in mesoscopic devices
We investigate the thermodynamic uncertainty relations (TURs) in mesoscopic devices for
all universal symmetry classes of Wigner-Dyson and Dirac (chiral). The observables of …
all universal symmetry classes of Wigner-Dyson and Dirac (chiral). The observables of …
Fluctuation phenomena in chaotic Dirac quantum dots: Artificial atoms on graphene flakes
J Ramos, MS Hussein, ALR Barbosa - Physical Review B, 2016 - APS
We develop the stub model for the Dirac quantum dot, an electron confining device on a
grapheme surface. Analytical results for the average conductance and the correlation …
grapheme surface. Analytical results for the average conductance and the correlation …
Spin-to-charge conversion in 2D electron gas and single-layer graphene devices
J Ramos, TC Vasconcelos, ALR Barbosa - Journal of Applied Physics, 2018 - pubs.aip.org
We investigate the spin-to-charge conversion emerging from a mesoscopic device
connected to multiple terminals. We obtain analytical expressions to the characteristic …
connected to multiple terminals. We obtain analytical expressions to the characteristic …