Few-electron molecular states and their transitions in a single InAs quantum dot molecule |
| |
Authors: | Ota T Rontani M Tarucha S Nakata Y Song H Z Miyazawa T Usuki T Takatsu M Yokoyama N |
| |
Affiliation: | ERATO/SORST/ICORP, JST, Atsugi-shi, Kanagawa 243-0198, Japan. ota@will.brl.ntt.co.jp |
| |
Abstract: | We study electronic configurations in a single pair of vertically coupled self-assembled InAs quantum dots, holding just a few electrons. By comparing the experimental data of nonlinear single-electron transport spectra in a magnetic field with many-body calculations, we identify the spin and orbital configurations to confirm the formation of molecular states by filling both the quantum mechanically coupled symmetric and antisymmetric states. Filling of the antisymmetric states is less favored with increasing magnetic field, and this leads to various magnetic field induced transitions in the molecular states. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|