82 citations · 162 across the 6 of their papers we have counts for
6 papers
A molecular state of correlated electrons in a quantum dot
Sokratis Kalliakos, Massimo Rontani, Vittorio Pellegrini +6
Correlation among particles in finite quantum systems leads to complex behaviour and novel states of matter. One remarkable example is predicted to occur in a semiconductor quantum…
Optical control of energy-level structure of few electrons in AlGaAs/GaAs quantum dots
Sokratis Kalliakos, Vittorio Pellegrini, Cesar Pascual Garcia +3
Optical control of the lateral quantum confinement and number of electrons confined in nanofabricated GaAs/AlGaAs quantum dots is achieved by illumination with a weak laser beam th…
Control of optical emission in doped GaAs/AlGaAs nanofabricated quantum dots
Sokratis Kalliakos, Cesar Pascual Garcia, Vittorio Pellegrini +8
Dilute arrays of GaAs/AlGaAs modulation-doped quantum dots (QDs) fabricated by electron-beam lithography and low impact reactive-ion etching exhibit highly homogeneous luminescence…
Observation of low-lying excitations of electrons in coupled quantum dots
Cesar Pascual Garcia, Sokratis Kalliakos, Vittorio Pellegrini +4
Tunneling excitations of electrons in dry-etched modulation-doped AlGaAs/GaAs coupled quantum dots (QDs) are probed by resonant inelastic light scattering. A sequence of intra- and…
Evidence of correlation in spin excitations of few-electron quantum dots
Cesar Pascual Garcia, Vittorio Pellegrini, Aron Pinczuk +6
We report inelastic light scattering measurements of spin and charge excitations in nanofabricated AlGaAs/GaAs quantum dots with few electrons. A narrow spin excitation peak is obs…
1.26 m intersubband transitions in InGaAs/AlAs quantum wells
Cesar Pascual Garcia, Andrea De Nardis, Vittorio Pellegrini +5
We observed room-temperature intersubband transitions at 1.26 microns in n-doped type-II InGaAs/AlAs strained quantum wells. An improved tight-binding model was use…