Back to Search
Start Over
Enhancement of Chirality-Induced Spin Selectivity by Strong Electron Correlations
- Publication Year :
- 2024
-
Abstract
- Chirality-induced spin selectivity is a spin-splitting phenomenon from a helical structure with a considerably effective spin-orbit coupling. This unexpectedly large spin-splitting phenomenon has been experimentally observed in chiral organic molecules, which typically show a weak spin-orbit coupling. To understand this, we use the renormalized mean-field theory and Landauer-B\"{u}ttiker formulas to study the transport properties of single-stranded DNA in the presence of strong electron correlation. It shows a significant spin polarization of 46.5% near the Coulomb repulsion limit, which explains the extremely high spin polarization observed in experiments. Compared to systems without electron correlation, the averaged spin polarization in this case is 2 to 4 times greater across various system sizes. Furthermore, the parameter dependence of the spin polarization and the underlying Metal-Insulator transition are studied.
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.2405.04316
- Document Type :
- Working Paper