231 citations · 1.5k across the 55 of their papers we have counts for
5 papers · 1 filter
Non-local Aharonov-Bohm conductance oscillations in an asymmetric quan-tum ring
S. S. Buchholz, S. F. Fischer, U. Kunze +2
We investigate ballistic transport and quantum interference in a nanoscale quantum wire loop fab-ricated as a GaAs/AlGaAs field-effect heterostructure. Four-terminal measurements o…
Collective single mode precession of electron spins in a quantum dot ensemble
A. Greilich, S. Spatzek, I. A. Yugova +6
We show that the spins of all electrons, each confined in a quantum dot of an (In,Ga)As/GaAs dot ensemble, can be driven into a single mode of precession about a magnetic field. Th…
Compact cryogenic Kerr microscope for time-resolved studies of electron spin transport in microstructures
P. J. Rizo, A. Pugžlys, J. Liu +4
A compact cryogenic Kerr microscope for operation in the small volume of high-field magnets is described. It is suited for measurements both in Voigt and Faraday configuration. Cou…
Transverse rectification in density-modulated two-dimensional electron gases
A. Ganczarczyk, S. Rojek, A. Quindeau +7
We demonstrate tunable transverse rectification in a density-modulated two-dimensional electron gas (2DEG). The density modulation is induced by two surface gates, running in paral…
The Knight field and the local nuclear dipole-dipole field in an (In,Ga)As quantum dot ensemble
T. Auer, R. Oulton, A. Bauschulte +6
We present a comprehensive investigation of the electron-nuclear system of negatively charged InGaAs/GaAs self-assembled quantum dots under the influence of weak external magnetic…