Polarization-dependent shift in excitonic Zeeman splitting of self-assembled In 0.75 Al 0.25 As ∕ Al 0.3 Ga 0.7 As quantum dots
作者： T. Yokoi , S. Adachi , H. Sasakura , S. Muto , H. Z. Song
DOI: 10.1103/PHYSREVB.71.041307
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摘要: We report optical spectroscopic results of a single self-assembled ${\mathrm{In}}_{0.75}{\mathrm{Al}}_{0.25}\mathrm{As}∕{\mathrm{Al}}_{0.3}{\mathrm{Ga}}_{0.7}\mathrm{As}$ quantum dot. The polarization-dependent shift the Zeeman splitting in InAlAs dot (QD) has been observed. induced Overhauser field is estimated to be $\ensuremath{\sim}0.16\phantom{\rule{0.3em}{0ex}}\mathrm{T}$ this QD and magnitude shown controllable by degree circular polarization excitation light.
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