Charge Redistribution and Spin Polarization Driven by Correlation Induced Electron Exchange in Chiral Molecules

@article{Fransson2021ChargeRA,
  title={Charge Redistribution and Spin Polarization Driven by Correlation Induced Electron Exchange in Chiral Molecules},
  author={Jonas Fransson},
  journal={Nano Letters},
  year={2021},
  volume={21},
  pages={3026 - 3032}
}
  • J. Fransson
  • Published 1 March 2021
  • Physics, Medicine
  • Nano Letters
Chiral induced spin selectivity is a phenomenon that has been attributed to chirality, spin–orbit interactions, and nonequilibrium conditions, while the role of electron exchange and correlations have been investigated only marginally until very recently. However, as recent experiments show that chiral molecules acquire a finite spin-polarization merely by being in contact with a metallic surface, these results suggest that electron correlations play a more crucial role for the emergence of the… 

Figures from this paper

Magnetochiral Polarization and High Order Transport in DNA type Chiral Materials
  • Jiewen Xiao, Binghai Yan
  • Physics
  • 2022
Jiewen Xiao and Binghai Yan Department of Condensed Matter Physics,Weizmann Institute of Science, Rehovot 76100, Israel Email:binghai.yan@weizmann.ac.il The chirality–spin interaction is a
Carrier localization and magnetoresistance in DNA-functionalized carbon nanotubes
TLDR
CISS-induced spin polarization has been estimated to increase the carrier localization length by an order of magnitude in the low temperature range and it affects the magnetoresistance effect in a non-trivial way that is not observed in conventional systems.
Charge and Spin Dynamics and Enantioselectivity in Chiral Molecules
Charge and spin dynamics is addressed in chiral molecules immediately after the instantaneous coupling to an external metallic reservoir. It is shown how a spin-polarization is induced in the chiral
Enantiospecificity of Cysteine Adsorption on a Ferromagnetic Surface: Is It Kinetically or Thermodynamically Controlled?
TLDR
This work uses electrochemical quartz crystal microbalance methods to demonstrate the enantiospecific interaction between a magnetized surface and a chiral amino acid and the enantioselectivity is shown to depend sensitively on the solution pH and the charge state of the chiral adsorbate.
Interplay between friction and spin-orbit coupling as a source of spin polarization
Artem G. Volosniev, Hen Alpern, 3 Yossi Paltiel, Oded Millo, Mikhail Lemeshko, and Areg Ghazaryan IST Austria (Institute of Science and Technology Austria), Am Campus 1, 3400 Klosterneuburg, Austria
Linear-response magnetoresistance effects in chiral systems
The chirality-induced spin selectivity (CISS) effect enables the detection of chirality as electrical charge signals. It is often studied using a two-terminal circuit geometry where a ferromagnet is
Origin of Chirality Induced Spin Selectivity in Photoinduced Electron Transfer.
TLDR
The proposed mechanism of chirality induced spin selectivity should apply to many chiral systems, and the ideas presented here have implications for the study of spin transport at temperatures relevant to biology and provide simple principles for the molecular control of spins in fluctuating environments.
Radiation-Induced Effect on Spin-Selective Electron Transfer through Self-Assembled Monolayers of ds-DNA
Stability of the DNA molecule is essential for the proper functioning and sustainability of all living organisms. In this study, we investigate the effect of gamma radiation (γ-radiation) on
Spin Fano Resonances in Chiral Molecules: An Alternative Mechanism for the CISS Effect and Experimental Implications.
TLDR
The emergence of spin Fano resonances as a mechanism in the chiral-induced spin-selectivity (CISS) effect associated with transport through a chiral polyacetylene molecule is reported and it is revealed that quasidegeneracy is common in this complex molecular system.
Spinterface Origin for the Chirality-Induced Spin-Selectivity Effect.
TLDR
This work presents a theory for the CISS effect based on the interplay between spin-orbit interactions in the electrode, the chirality of the molecule (which induces a solenoid field), and spin-transfer torque at the molecule-electrode interface.
...
1
2
...

References

SHOWING 1-10 OF 62 REFERENCES
Chirality Induced Spin Selectivity - The Role of Electron Correlations.
  • J. Fransson
  • Physics, Medicine
    The journal of physical chemistry letters
  • 2019
TLDR
This work addresses chirality induced spin selectivity using a many-body approach, which allows for non-equilibrium conditions and a systematic treatment of the correlated state, and suggests the vital importance of including electron correlations when searching for explanations of the phenomenon.
Vibrational origin of exchange splitting and ”chiral-induced spin selectivity
  • J. Fransson
  • Physics, Materials Science
    Physical Review B
  • 2020
Electron exchange and correlations emerging from the coupling between ionic vibrations and electrons are addressed. Spin-dependent electron-phonon coupling originates from the spin-orbit interaction,
Spin-dependent transport through a chiral molecule in the presence of spin-orbit interaction and nonunitary effects
Recent experiments have demonstrated the efficacy of chiral helically shaped molecules in polarizing the scattered electron spin, an effect termed as chiral-induced spin selectivity (CISS). Here we
Chiral molecular films as electron polarizers and polarization modulators
Recent experiments on electron scattering through molecular films have shown that chiral molecules can be efficient sources of polarized electrons even in the absence of heavy nuclei as source of a
Theory of Chiral Induced Spin Selectivity.
TLDR
It is proved that in a situation with one magnetic lead, the other lead will become magnetized and this results from the interplay between the spin-orbit coupling in the chiral molecule and the magnetized lead.
Effect of Chiral Molecules on the Electron’s Spin Wavefunction at Interfaces
TLDR
Kelvin-probe measurements on ferromagnetic thin film electrodes reveal that the electron penetration from the metal electrode into the chiral molecules depends on the ferromagnet’s magnetization direction and the molecules’ chirality, which implies that this phenomenon is important for spin transport in chiral spintronic devices and for magneto-electrochemistry of chiral molecule.
Chirality-Dependent Electron Spin Filtering by Molecular Monolayers of Helicenes.
TLDR
The results support the semiclassical picture of electronic transport along a helical pathway under the influence of spin-orbit coupling induced by the electrostatic molecular potential.
Chiral electron transport: scattering through helical potentials.
TLDR
A model for the transmission of spin-polarized electrons through oriented chiral molecules, where the chiral structure is represented by a helix, which can be easily extended to the Landauer regime of conductance where conductance is due to elastic scattering, so that the conductance of chiral molecular junctions is considered.
Enhanced Magnetoresistance in Chiral Molecular Junctions.
TLDR
It is found that the α-helix conformation displays a spin polarization, calculated through the intrinsic magneto-resistance of the junction, about 100-1000 times larger than the linear β-strand, clearly demonstrating the crucial role played by the molecular helical geometry on the enhancement of spin polarization associated with the CISS effect.
Long-Range Spin-Selective Transport in Chiral Metal–Organic Crystals with Temperature-Activated Magnetization
Room-temperature, long-range (300 nm), chirality-induced spin-selective electron conduction is found in chiral metal–organic Cu(II) phenylalanine crystals, using magnetic conductive-probe atomic
...
1
2
3
4
5
...