8 citations · 10 across the 4 of their papers we have counts for
4 papers
Electronic and optical properties of carbon nanodisks and nanocones
P. Ulloa, M. Pacheco, L. E. Oliveira +1
A theoretical study of the electronic properties of nanodisks and nanocones is presented within the framework of a tight-binding scheme. The electronic densities of states and abso…
On the nature of ferromagnetism in Ga_{1-x}Mn_xAs semiconductors
A. J. R. da Silva, A. Fazzio, R. R. dos Santos +1
We have performed ab initio calculations within the density-functional theory for Ga_{1-x}Mn_xAs diluted semiconductors. Total energy results unambiguously show that a quasi-locali…
Rabi oscillations, coherent properties and model qubits in two-level donor systems under terahertz radiation
H. S. Brandi, A. Latge, L. E. Oliveira
Quantum confinement, magnetic-field effects, and laser coupling with the two low-lying states of electrons bound to donor impurities in semiconductors may be used to coherently man…
Magnetic-field effects in defect-controlled ferromagnetic Ga_{1-x}Mn_xAs semiconductors
Raimundo R. dos Santos, J. d'Albuquerque e Castro, L. E. Oliveira
We have studied the magnetic-field and concentration dependences of the magnetizations of the hole and Mn subsystems in diluted ferromagnetic semiconductor Ga_{1-x}Mn_xAs. A mean-f…