- Tytuł:
- Overhauser effect and anisotropy of electron spin g-factor in GaAs / AlGaAs quantum wells
- Autorzy:
-
Ito, T.
Shichi, W.
Ichida, M.
Gotoh, H.
Kamada, H.
Ando, H. - Powiązania:
- https://bibliotekanauki.pl/articles/385175.pdf
- Data publikacji:
- 2009
- Wydawca:
- Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
- Tematy:
-
quantum well
electron spin g-factor
Overhouser effect - Opis:
- To investigate the dependence of electron g-factor on magnetic field in GaAs / AlGaAs quantum wells time-resolved photoluminescence measurements under a high magnetic field in different experimental configuration, the magnetic field perpendicular (g up tack ) and parallel (g II) to the quantum confinement direction, has been studied. When the angle between the magnetic field and the confinement direction is 45°, the precession frequency varies depending on polarity of magnetic field and the circular polarization type of excitation light (sigma+ or sigma-). We found that these dependences of the precession frequency exhibit main features of Overhauser effect with an effective magnetic field of 0.5 T that nuclear spins react back on electron spin precession and the g-factor value is not affected by the effective magnetic field. The g+ and gii values agree well with the results of four-band k • p perturbation calculations.
- Źródło:
-
Journal of Automation Mobile Robotics and Intelligent Systems; 2009, 3, 4; 105-107
1897-8649
2080-2145 - Pojawia się w:
- Journal of Automation Mobile Robotics and Intelligent Systems
- Dostawca treści:
- Biblioteka Nauki
Artykuł