scholarly journals Optically induced nuclear spin polarization in a single GaAs/AlGaAs quantum well probed by a resistance detection method in the fractional quantum Hall regime

2013 ◽  
Vol 87 (23) ◽  
Author(s):  
K. Akiba ◽  
T. Yuge ◽  
S. Kanasugi ◽  
K. Nagase ◽  
Y. Hirayama
Keyword(s):  
Quantum Well ◽  
Spin Polarization ◽  
Nuclear Spin ◽  
Detection Method ◽  
Quantum Hall ◽  
Nuclear Spin Polarization ◽  
Fractional Quantum ◽  
Fractional Quantum Hall ◽  
Quantum Hall Regime ◽  
Hall Regime

scholarly journals Absorption in the Fractional Quantum Hall Regime: Trion Dichroism and Spin Polarization

2007 ◽  
Vol 98 (15) ◽  
Author(s):  
J. G. Groshaus ◽  
P. Plochocka-Polack ◽  
M. Rappaport ◽  
V. Umansky ◽  
I. Bar-Joseph ◽  
...  
Keyword(s):  
Spin Polarization ◽  
Quantum Hall ◽  
Fractional Quantum ◽  
Fractional Quantum Hall ◽  
Quantum Hall Regime ◽  
Hall Regime

OPTICALLY INDUCED DYNAMIC NUCLEAR SPIN POLARIZATION IN QUANTUM HALL REGIME OBSERVED BY A TIME-RESOLVED KERR ROTATION

2009 ◽  
Vol 23 (12n13) ◽  
pp. 2755-2759 ◽  
Author(s):  
DAISUKE FUKUOKA ◽  
NAOKI TANAKA ◽  
KENICHI OTO ◽  
KIYOFUMI MURO ◽  
YOSHIRO HIRAYAMA ◽  
...  
Keyword(s):  
Spin Polarization ◽  
Nuclear Spin ◽  
Quantum Hall ◽  
Nuclear Spins ◽  
Nuclear Spin Polarization ◽  
Kerr Rotation ◽  
Time Resolved ◽  
Circularly Polarized ◽  
Quantum Hall Regime ◽  
Hall Regime

The dynamics between electron and nuclear spins in quantum Hall regime is investigated by a time-resolved Kerr rotation (TRKR) spectroscopy carried down in tilted-field geometry. The spin-flip energy varies almost linearly with the applied magnetic field under the nuclear spin depolarizing radio frequency field and the helicity modulation of circularly polarized pump, while the spin-flip energy obtained under a circularly polarized pump deviates from linearly behavior. This deviation is ascribed to the Overhauser shift due to dynamic nuclear spin polarization (DNP). The DNP depends markedly on the filling factor and present peaks at even filling factors. These results can be well explained by a simple model based on the detailed balance between electron and nuclear spins.

scholarly journals Nonlinear optics in the fractional quantum Hall regime

Nature ◽  
2019 ◽  
Vol 572 (7767) ◽  
pp. 91-94 ◽  
Author(s):  
Patrick Knüppel ◽  
Sylvain Ravets ◽  
Martin Kroner ◽  
Stefan Fält ◽  
Werner Wegscheider ◽  
...  
Keyword(s):  
Nonlinear Optics ◽  
Quantum Hall ◽  
Fractional Quantum ◽  
Fractional Quantum Hall ◽  
Quantum Hall Regime ◽  
Hall Regime
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