Abstract
Abstract
In this article, through serially (one level) coupled double quantum dots made of different semiconductor materials, a physical model for studying spin-polarized electrons current under coherent tunneling effect, and Rashba spin-orbit effect, RSO, is presented in this article. A magnetic field influences Zeeman splitting of the two dots for a different Zeeman splitting. The DQD system combines two energy levels with the same spin, resulting in a coherent tunneling effect. As a function of the detuning energy (ϵ), the tunneling spin-polarized current and polarization are calculated. Using coherent tunneling, Rashba spin-orbit effect, and external magnetic field, I see that the polarization can be controlled exhaustively. Lastly, we have calculated that this system can be used as a spin filter to generate a strong spin-polarized current.
Publisher
Research Square Platform LLC
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