320 citations · 565 across the 8 of their papers we have counts for
8 papers
Direct control of the tunnel splitting in a one-electron double quantum dot
A. K. Huettel, S. Ludwig, K. Eberl +1
Quasi-static transport measurements are employed on a laterally defined tunnel-coupled double quantum dot. A nearby quantum point contact allows us to track the charge as added to…
Nuclear spin relaxation probed by a single quantum dot
A. K. Huettel, J. Weber, A. W. Holleitner +3
We present measurements on nuclear spin relaxation probed by a single quantum dot in a high-mobility electron gas. Current passing through the dot leads to a spin transfer from the…
Exchange instability of the two-dimensional electron gas in semiconductor quantum wells
A. R. Goñi, U. Haboeck, C. Thomsen +4
A two-dimensional (2D) electron gas formed in a modulation-doped GaAs/AlGaAs single quantum well undergoes a first-order transition when the first excited subband is occupied with…
Coherent coupling of two quantum dots embedded in an Aharonov-Bohm ring
A. W. Holleitner, C. R. Decker, K. Eberl +1
We define two laterally gated small quantum dots (~ 15 electrons) in an Aharonov-Bohm geometry in which the coupling between the two dots can be broadly changed. For weakly coupled…
Superposition of photon- and phonon- assisted tunneling in coupled quantum dots
H. Qin, A. W. Holleitner, K. Eberl +1
We report on electron transport through an artificial molecule formed by two tunnel coupled quantum dots, which are laterally confined in a two-dimensional electron system of an Al…
Phonon emission and absorption in the fractional quantum Hall effect
F. Schulze-Wischeler, U. Zeitler, M. Monka +3
We investigate the time dependent thermal relaxation of a two-dimensional electron system in the fractional quantum Hall regime where ballistic phonons are used to heat up the syst…