Giant fluctuations and gate control of the g-factor in InAs nanowire quantum dots.
basic_science · Level V
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- Record sourced from PubMed, PMID 18937519.
- Also identified by DOI 10.1021/nl802418w.
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Abstract
We study the g-factor of discrete electron states in InAs nanowire based quantum dots. The g values are determined from the magnetic field splitting of the zero bias anomaly due to the spin 1/2 Kondo effect. Unlike to previous studies based on 2DEG quantum dots, the g-factors of neighboring electron states show a surprisingly large fluctuation: g can scatter between 2 and 18. Furthermore electric gate tunability of the g-factor is demonstrated.