Zobrazeno 1 - 10
of 131
pro vyhledávání: '"R. Strenz"'
Publikováno v:
Physica B: Condensed Matter. 227:6-10
Resonant ineleastic light scattering is used to study collective and single-particle excitations in GaAs/AlGaAs based quantum wires and quantum dots. Interlevel transitions show a significant blue shift with decreasing confinement length. These excit
Autor:
G. Böhm, Gert Schedelbeck, G. Weimann, E. Silveira, R. Strenz, U. Bockelmann, Gerhard Abstreiter
Publikováno v:
Surface Science. :783-787
Resonant inelastic light scattering was used to investigate both charge density excitations and spin density excitations in shallow etched GaAsAl/GaAs quantum wires. A semi-transparent Schottky gate was evaporated on top of the samples which allowed
Publikováno v:
Solid-State Electronics. 40:333-337
We report measurements of electronic excitations in the confinement regime between one and two dimensions. FIR transmission spectroscopy has been successfully used to detect two-dimensional plasmons dispersion, localized plasmons and depolarization s
Autor:
Christian Wetzel, R. Strenz, G. Weimann, Bruno K. Meyer, F. Hirler, Gerhard Abstreiter, M. Drechsler, G. Böhm, D. M. Hofmann
Publikováno v:
Physical Review B. 52:11313-11318
Publikováno v:
Physical Review B. 51:5554-5557
Time-resolved photoluminescence studies have been performed on shallow etched wires prepared from remote-doped GaAs/${\mathrm{Al}}_{\mathit{x}}$${\mathrm{Ga}}_{1\mathrm{\ensuremath{-}}\mathit{x}}$As quantum wells. A fast decay is observed for the dir
Publikováno v:
Physical Review Letters. 73:3022-3025
Resonant inelastic light scattering is used to probe electronic excitations in shallow etched GaAs/AlGaAs quantum dots and wires. In both types of structures, intersubband excitations are observed in depolarized scattering geometries. They show signi
Publikováno v:
Semiconductor Science and Technology. 9:399-403
Resonant Raman scattering and FIR transmission spectroscopy is used to detect confined plasmons in shallow etched GaAs/AlGaAs single quantum well wires. Different samples with varying period lengths and wire widths are investigated. The lateral poten
Publikováno v:
Surface Science. 305:591-596
Shallow etched wires, dots and antidots have been prepared from remote-doped GaAs AlGaAs quantum wells. The luminescence of electrons and holes separated into adjacent lateral regions was studied with a magnetic field applied in the growth direction.
Autor:
G. Tränkle, G. Weimann, R. Strenz, Jürgen Smoliner, R. Küchler, F. Hirler, Gerhard Abstreiter, G. Böhm
Publikováno v:
Surface Science. 263:536-540
Electrons and photoexcited holes are separated into adjacent quantum wires in remote doped GaAs/AlGaAs quantum wells, using a shallow etching technique. This spatial separation results in a drastic change of the photoluminescence lineshape and an add
Publikováno v:
2008 9th International Conference on Solid-State and Integrated-Circuit Technology.
Scaling limitations on NVM Stacked gate embedded into high-performance (HP) CMOS logic process will be reviewed with potential solutions identified. As technology continues its shrink path into 65 nm and beyond, scaling is becoming challenged due to