368 citations · 640 across the 6 of their papers we have counts for
6 papers
Micropatterned Electrostatic Traps for Indirect Excitons in Coupled GaAs Quantum Wells
A. Gartner, L. Prechtel, D. Schuh +2
We demonstrate an electrostatic trap for indirect excitons in a field-effect structure based on coupled GaAs quantum wells. Within the plane of a double quantum well indirect excit…
Four-point measurements of n- and p-type two-dimensional systems fabricated with cleaved-edge overgrowth
M. Grayson, S. F. Roth, Y. Xiang +3
We demonstrate a contact design that allows four-terminal magnetotransport measurements of cleaved-edge overgrown two-dimensional electron and hole systems. By lithographically pat…
Direct Observation of Controlled Coupling in an Individual Quantum Dot Molecule
H. J. Krenner, M. Sabathil, E. C. Clark +5
We report the direct observation of quantum coupling in individual quantum dot molecules and its manipulation using static electric fields. A pronounced anti-crossing of different…
Anomalous Spin Dephasing in (110) GaAs Quantum Wells: Anisotropy and Intersubband Effects
S. Doehrmann, D. Haegele, J. Rudolph +3
A strong anisotropy of electron spin decoherence is observed in GaAs/(AlGa)As quantum wells grown on (110) oriented substrate. The spin lifetime of spins perpendicular to the growt…
Corner overgrowth: Bending a high mobility two-dimensional electron system by 90 degrees
M. Grayson, D. Schuh, M. Huber +2
Introducing an epitaxial growth technique called corner overgrowth, we fabricate a quantum confinement structure consisting of a high-mobility GaAs/AlGaAs heterojunction overgrown…
Quantum Hall Effect in a Two-Dimensional Electron System Bent by 90 Degrees
M. Grayson, D. Schuh, M. Bichler +4
Using a new MBE growth technique, we fabricate a two-dimensional electron system which is bent around an atomically sharp 90 degree corner. In the quantum Hall regime under tilted…