Spin dynamics of 2-DEG Rashba-Dresselhaus spin-orbit systems: Quantum propagators and semi-analytical analysis in low electron density

Abstract The spin dynamics in space and time for Dresselhaus and Rashba spin-orbit interaction 2-DEG systems can be studied for any value of their β and α coefficients by using quantum propagators. With the development of analytical expressions for the quantum propagators and numerical solutions of...

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Published inPhysica scripta
Main Authors Bravo-Velazquez, Carlos Alberto, Lastras, Luis Felipe, Herrera-Serna, David Ulises, Martinez-Zepeda, Gabriel Adonai Adonai
Format Journal Article
LanguageEnglish
Published 09.10.2024
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Summary:Abstract The spin dynamics in space and time for Dresselhaus and Rashba spin-orbit interaction 2-DEG systems can be studied for any value of their β and α coefficients by using quantum propagators. With the development of analytical expressions for the quantum propagators and numerical solutions of the wave function, it has been possible to simulate the spin propagation in space-time and analyze the spin dynamics for different α/β ratios. In the present paper, the effects of the spin diffusion for large collision time τ p , was performed by using quantum propagators for different α/β ratios. It was found that the largest degree of spin polarization is achieved when |α| = |β|.
ISSN:0031-8949
1402-4896
DOI:10.1088/1402-4896/ad8523