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This is a Quantitative Study study.

October 1, 2025Open Access

Chirality-Induced Spin–Orbit Coupling and Spin Selectivity

Key Points

Chirality-induced spin-orbit coupling leads to significant spin polarization in helical structures, enhancing spin selectivity.
Measured spin polarization values are typical for various helical molecular structures, indicating widespread implications of the chirality effect.
Findings suggest that broken time-reversal symmetry coupled with chirality may unify the understanding of the CISS phenomenon.
The study links the curvature of helical paths to induced spin effects, providing new avenues for research in spintronics.

Abstract

We show that a spinor traveling along a one-dimensional helical path develops a spin-orbit coupling as a result of the curvature of the path. We estimate the magnitude of the associated spin polarization and obtain values typical of many helical molecular structures that showcase the Chirality-induced Spin Selectivity (CISS) effect. We find that this chirality-induced spin-orbit coupling (χ-SOC), in conjunction with broken time-reversal symmetry, may be an important ingredient for the microscopic underpinning of the CISS phenomenon.

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Authors

Massimiliano Di Ventra

Rafael Gutiérrez

Gianaurelio Cuniberti

Journals

The Journal of Physical Chemistry A

Actions

Institutions

University of California, San Diego

Technische Universität Dresden

References and Citations

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Building similarity graph...

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Chirality-Induced Spin–Orbit Coupling and Spin Selectivity

Key Points

Abstract

Citation Network

Connected Papers

Discussion

Authors

Journals

Actions

Institutions

References and Citations

Citation Network

Connected Papers

Discussion

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