3 papers
cond-mat.mes-hall2022
Distinctive g-factor of moire-confined excitons in van der Waals heterostructures
Y. Galvão Gobato, C. Serati de Brito, Andrey Chaves +7
We investigated experimentally the valley Zeeman splitting of excitonic peaks in the photoluminescence (PL) spectra of high-quality hBN/WS2/MoSe2/hBN heterostructures at near-zero…
cond-mat.mes-hall2018
Experimental evidences of trions and Fermi edge singularity in single barrier GaAs/AlAs/GaAs heterostructure using photocapacitance spectroscopy
Amit Bhunia, Mohit Kumar Singh, Y. Galvao Gobato +2
In this paper, we show how photocapacitance spectra can probe two dimensional excitonic complexes and Fermi edge singularity as a function of applied bias around 100 K. In lower de…
cond-mat.mes-hall2006
Electric field inversion asymmetry: Rashba and Stark effects for holes in resonant tunneling devices
H. B. de Carvalho, M. J. S. P. Brasil, V. Lopez-Richard +7
We report experimental evidence of excitonic spin-splitting, in addition to the conventional Zeeman effect, produced by a combination of the Rashba spin-orbit interaction, Stark sh…