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- F. Domínguez-Adame, R. Hey, V. Bellani, G. B. Parravicini, E. Diez
- Microelectronics Journal
- 2004

We characterized the electronic properties of ordered and intentionally disordered GaAs – Al x Ga 12x As superlattices, with and without dimer-type correlations in the disorder, by means of spectroscopic ellipsometry in the near band-edge region. The spectra have been compared to the calculate electronic structure. The optical transitions in the various… (More)

We analyze the effects of intersite energy correlations on the linear optical properties of one-dimensional disordered Frenkel exciton systems. The absorption line width and the factor of radiative rate enhancement are studied as a function of the correlation length of the disorder. The absorption line width monotonously approaches the seeding degree of… (More)

We consider the electronic transport through a Rashba quantum dot coupled to ferromagnetic leads. We show that the interference of localized electron states with resonant electron states leads to the appearance of the Fano-Rashba effect. This effect occurs due to the interference of bound levels of spin-polarized electrons with the continuum of electronic… (More)

- C González-Santander, T Apostolova, F Domínguez-Adame
- Journal of physics. Condensed matter : an…
- 2013

We calculate the binding energy of on- and off-center hydrogenic impurities in a parabolic quantum dot subjected to an intense high-frequency laser field. An exactly solvable model that replaces the actual Coulomb interaction with the donor by a non-local separable potential is introduced for calculating the binding energy. The separable potential allows us… (More)

- J Munárriz, F Domínguez-Adame, P A Orellana, A V Malyshev
- Nanotechnology
- 2012

We propose a novel spin filter based on a graphene nanoring fabricated above a ferromagnetic strip. The exchange interaction between the magnetic moments of the ions in the ferromagnet and the electron spin splits the electronic states, and gives rise to spin polarization of the conductance and the total electric current. We demonstrate that both the… (More)

- F. Domínguez-Adame, I. Gómez, P. A. Orellana, María L. Ladrón de Guevara
- Microelectronics Journal
- 2004

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