Quantum Monte Carlo study of circular quantum dots in presence of Rashba interaction

Article

关键词: SPIN-ORBIT INTERACTION;    MAGNETIC-FIELD;    WELLS;    SIMULATIONS;    ELECTRONS;    SPECTRA;   

DOI  :  10.1103/PhysRevB.83.155301

来源: SCIE

【 摘 要 】

We performed a quantum Monte Carlo study of a quasi-two-dimensional quantum dot built on a semiconductor quantum well, including the effects of structure inversion asymmetry (SIA) modeled by a Rashba interaction. The quantum dot is in turn modeled as a system of N interacting electrons confined by a parabolic potential of strength omega(0). We studied the interplay between the strength of the Rashba interaction and omega(0) in determining the addition energies of the system. We also analyzed the SIA effects on the one-body density and spin-density both for the case of a closed-shell and open-shell dot. In the last case we confirm the prediction of the formation of spin textures.

【 授权许可】

Free