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Electronic and spin states at edges of finite p-orbital helical atomic chain.
- Source :
-
Journal of Chemical Physics . 12/28/2023, Vol. 159 Issue 24, p1-9. 9p. - Publication Year :
- 2023
-
Abstract
- In connection to the chiral-induced spin selectivity effect, we theoretically analyze the electronic and spin states of edges of a finite p-orbital helical atomic chain with the intra-atomic spin–orbit interaction. This model can host the spin-filtering state in which two up-spins propagate in one direction and two down-spins propagate in the opposite direction without breaking the time-reversal symmetry (TRS). The enhancement of charge modulations concentrated at the edges due to the evanescent states is induced, although the spin density is absent because of the TRS. A Zeeman field at an edge of the atomic chain, which breaks the TRS, yields a finite spin polarization, whose direction depends on the chirality of the molecule. The chirality change induces a reasonable amount of the energy difference, which may provide an insight into the enantioselective adsorption of chiral molecules on the ferromagnetic surface. [ABSTRACT FROM AUTHOR]
- Subjects :
- *SPIN-orbit interactions
*SPIN polarization
*SYMMETRY breaking
*CHIRALITY
*MOLECULES
Subjects
Details
- Language :
- English
- ISSN :
- 00219606
- Volume :
- 159
- Issue :
- 24
- Database :
- Academic Search Index
- Journal :
- Journal of Chemical Physics
- Publication Type :
- Academic Journal
- Accession number :
- 174524187
- Full Text :
- https://doi.org/10.1063/5.0160051