Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
1999-10-28
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
9 pages, 2 figures
Scientific paper
10.1016/S0038-1098(00)00074-0
The significance of nuclear spin polarisation in time-resolved optical studies of III-V semiconductors is addressed. Electron Larmor beats in pump-probe reflectivity from a GaAs/AlGaAs quantum well show Overhauser shift of 0.7 T due to accumulated nuclear polarisation /I=0.065. This leads to precision values of electron g-factor, elucidates nuclear spin pumping and diffusion mechanisms in quantum wells and informs discussion of implications for spin-electronics and transport.
Harley Thomas Randall
Malinowski Adam
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