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Dynamic Nuclear Overhauser Shifts in Larmor beats from a quantum well

A. Malinowski·R. T. Harley
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Abstract

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.

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A. Malinowski, R. T. Harley. 1999-10-28. Dynamic Nuclear Overhauser Shifts in Larmor beats from a quantum well. https://doi.org/10.1016/s0038-1098(00)00074-0

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