60 citations · 111 across the 8 of their papers we have counts for
8 papers
Acousto-electric study of microwave-induced current domains
Benedikt Friess, Ivan A. Dmitriev, Vladimir Umansky +4
Surface Acoustic Waves (SAW) have been utilized to investigate the properties of a two-dimensional electron system, subjected to a perpendicular magnetic field and monochromatic mi…
Hall field-induced resistance oscillations in a tunable-density GaAs quantum well
M. A. Zudov, Q. Shi, I. A. Dmitriev +4
We report on Hall field-induced resistance oscillations (HIRO) in a 60 nm-wide GaAs/AlGaAs quantum well with an \emph{in situ} grown back gate, which allows tuning the carrier dens…
Apparent temperature-induced reorientation of quantum Hall stripes
Q. Shi, M. A. Zudov, B. Friess +4
Our magnetotransport measurements of quantum Hall stripes in a high-quality GaAs quantum well in a slightly tilted magnetic field reveal that the orientation of stripes can be chan…
Negative permittivity attests to local attractive interactions in bubble and stripe phases
Benedikt Friess, Yang Peng, Bernd Rosenow +4
The physics of itinerant electrons in condensed matter is by and large governed by repulsive Coulomb forces. However, rare cases exist where local attractive interactions emerge an…
Disorder Enhanced Nuclear Spin Relaxation at Landau Level Filling Factor One
Tong Guan, Benedikt Friess, Yongqing Li +4
The nuclear spin relaxation rate (1/) is measured for GaAs two-dimensional electron systems in the quantum Hall regime with an all-electrical technique for agitating and probi…
A Quantized State in a Two-Subband Quantum Hall System
J. Nuebler, B. Friess, V. Umansky +4
The evolution of the fractional quantum Hall state at filling 5/2 is studied in density tunable two-dimensional electron systems formed in wide wells in which it is possible to ind…
Nuclear Feedback in a Single Electron-Charged Quantum Dot under Pulsed Optical Control
Thaddeus D. Ladd, David Press, Kristiaan De Greve +7
Electron spins in quantum dots under coherent control exhibit a number of novel feedback processes. Here, we present experimental and theoretical evidence of a feedback process bet…
Pulsed Nuclear Pumping and Spin Diffusion in a Single Charged Quantum Dot
Thaddeus D. Ladd, David Press, Kristiaan De Greve +7
We report the observation of a feedback process between the nuclear spins in a single charged quantum dot and its trion transition, driven by a periodic sequence of optical pulses.…