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arXiv · 1807.01413

Sign identification of electron and hole out-of-plane g factors by utilizing nuclear spin switch in single quantum nanostructures

R. Matsusaki·R. Kaji·S. Yamamoto·S. Adachi
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Abstract

The electron and hole g factors are the key quantities for the spin manipulations in semiconductor quantum nanostructures. However, for the individual nanostructures, the separate determination including the signs of those g factors is difficult by using some methods adopted conventionally in bulks and quantum wells. We report a convenient optical method for the sign identification of out-of-plane g factors in the individual quantum nanostructures, which utilizes the optically-induced nuclear spin switch. The method is demonstrated in typical single self-assembled In$_{0.75}$Al$_{0.25}$As/Al$_{0.3}$Ga$_{0.7}$As quantum dots and InAs/GaAs quantum rings, where the g factors with the opposite sign for electron and the same sign for hole are proved.

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R. Matsusaki, R. Kaji, S. Yamamoto, S. Adachi. 2018-07-04. Sign identification of electron and hole out-of-plane g factors by utilizing nuclear spin switch in single quantum nanostructures. https://arxiv.org/abs/1807.01413

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