576 citations · 10.8k across the 238 of their papers we have counts for
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Spin Reversal of a Quantum Hall Ferromagnet at a Landau Level Crossing
M. Lupatini, P. Knüppel, S. Faelt +4
When Landau levels (LLs) become degenerate near the Fermi energy in the quantum Hall regime, interaction effects can drastically modify the electronic ground state. We study the qu…
On the impact of strain on the electronic properties of InAs/GaSb quantum well systems
Lars Tiemann, Susanne Mueller, Quansheng Wu +6
Electron-hole hybridization in InAs/GaSb double quantum well structures leads to the formation of a mini band gap. We experimentally and theoretically studied the impact of strain…
Electron spin polarization by isospin ordering in correlated two-layer quantum Hall systems
L. Tiemann, W. Wegscheider, M. Hauser
Enhancement of the electron spin polarization in a correlated two-layer two-dimensional electron system at a total Landau level filling factor of one is reported. Using resistively…
On the relation between the 0.7-anomaly and the Kondo effect: Geometric Crossover between a Quantum Point Contact and a Kondo Quantum Dot
Jan Heyder, Florian Bauer, Enrico Schubert +5
Quantum point contacts (QPCs) and quantum dots (QDs), two elementary building blocks of semiconducting nanodevices, both exhibit famously anomalous conductance features: the 0.7-an…
Tunable Non-local Coupling between Kondo Impurities
Daniel Tutuc, Bogdan Popescu, Dieter Schuh +2
We study the tuning mechanisms of the Ruderman-Kittel-Kasuya-Yosida (RKKY) exchange interaction between two lateral quantum dots in the Kondo regime. At zero magnetic field we obse…
Density dependence of microwave induced magneto-resistance oscillations in a two-dimensional electron gas
B. Simovic, C. Ellenberger, K. Ensslin +1
We have measured the magneto-resistance of a two-dimensional electron gas (2DEG) under continuous microwave irradiation as a function of electron density and mobility tuned with a…