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- Schott (Germany)DE23 papers
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21 papers · 1 filter
Gate control of low-temperature spin dynamics in two-dimensional hole systems
M. Kugler, T. Andlauer, T. Korn +9
We have investigated spin and carrier dynamics of resident holes in high-mobility two-dimensional hole systems in GaAs/AlGaAs single quantum wells at temperatures d…
Density Enhanced Diffusion of Dipolar Excitons within a One-Dimensional Channel
X. P. Vogele, D. Schuh, W. Wegscheider +2
We experimentally investigate the lateral diffusion of dipolar excitons in coupled quantum wells in two (2D) and one (1D) dimensions. In 2D, the exciton expansion obeys non-linear…
Selective Optical Charge Generation, Storage and Readout in a Single Self Assembled Quantum Dot
D. Heiss, V. Jovanov, M. Caesar +3
We report the investigation of a single quantum dot charge storage device. The device allows selective optical charging of a single dot with electrons, storage of these charges ove…
A Schottky top-gated two-dimensional electron system in a nuclear spin free Si/SiGe heterostructure
J. Sailer, V. Lang, G. Abstreiter +8
We report on the realization and top-gating of a two-dimensional electron system in a nuclear spin free environment using 28Si and 70Ge source material in molecular beam epitaxy. E…
Single-valley high-mobility (110) AlAs quantum wells with anisotropic mass
S. Dasgupta, S. Birner, C. Knaak +4
We studied a doping series of (110)-oriented AlAs quantum wells (QWs) and observed transport evidence of single anisotropic-mass valley occupancy for the electrons in a 150 Åwide Q…
Cavity-Assisted Back Action Cooling of Mechanical Resonators
I. Wilson-Rae, N. Nooshi, J. Dobrindt +2
We analyze the quantum regime of the dynamical backaction cooling of a mechanical resonator assisted by a driven harmonic oscillator (cavity). Our treatment applies to both optomec…