154 citations · 209 across the 6 of their papers we have counts for
6 papers
Microwave magnetoplasmon absorption by a 2DEG stripe
O. M. Fedorych, S. Moreau, M. Potemski +3
Microwave absorption by a high mobility 2DEG has been investigated experimentally using sensitive Electron Paramagnetic Resonance cavity technique. It is found that MW absorption s…
Effects of Quantum-Well Inversion Asymmetry on Electron-Nuclear Spin Coupling in the Fractional Quantum Hall Regime
Katsushi Hashimoto, Koji Muraki, Norio Kumada +2
We examine effects of inversion asymmetry of a GaAs/Al0.3Ga0.7As quantum well (QW) on electron-nuclear spin coupling in the fractional quantum Hall (QH) regime. Increasing the QW p…
Simultaneous Excitation of Spins and Pseudospins in the Bilayer Quantum Hall State
D. Terasawa, M. Morino, K. Nakada +7
The tilting angular dependence of the energy gap was measured in the bilayer quantum Hall state at the Landau level filling by changing the density imbalance between the two…
Phase Transitions in the Bilayer Quantum Hall Effect
N. Kumada, D. Terasawa, Y. Shimoda +6
We measured the magnetoresistance of bilayer quantum Hall (QH) effects at the fractional filling factor by changing the total electron density and the density difference be…
Electrically-Controlled Nuclear Spin Polarization and Relaxation by Quantum-Hall states
K. Hashimoto, K. Muraki, T. Saku +1
We investigate interactions between electrons and nuclear spins by using the resistance (Rxx) peak which develops near filling factor n = 2/3 as a probe. By temporarily tuning n to…
Doubly Enhanced Skyrmions in Bilayer Quantum Hall States
N. Kumada, A. Sawada, Z. F. Ezawa +5
By tilting the samples in the magnetic field, we measured and compared the Skyrmion excitations in the bilayer quantum Hall (QH) state at the Landau-level filling factor and…