Electrically tunable three-dimensional g -factor anisotropy in single InAs self-assembled quantum dots

  title={Electrically tunable three-dimensional g -factor anisotropy in single InAs self-assembled quantum dots},
  author={S. Takahashi and Russell S. Deacon and Akira Oiwa and Kenji Shibata and Kazuhiko Hirakawa and Seigo Tarucha},
  journal={Physical Review B},
Three-dimensional anisotropy of the Land\'e $g$ factor and its electrical modulation are studied for single uncapped InAs self-assembled quantum dots (QDs). The $g$ factor is evaluated from measurement of inelastic cotunneling via Zeeman substates in the QD for various magnetic field directions. We find that the value and anisotropy of the $g$ factor depends on the type of orbital state which arises from the three-dimensional confinement anisotropy of the QD potential. Furthermore, the $g… Expand

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