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arXiv · 2502.09338

Chirality-induced Spin-Orbit Coupling and Spin Selectivity

Massimiliano Di Ventra·Rafael Gutierrez·Gianaurelio Cuniberti
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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 ($\chi$-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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Massimiliano Di Ventra, Rafael Gutierrez, Gianaurelio Cuniberti. 2025-02-13. Chirality-induced Spin-Orbit Coupling and Spin Selectivity. https://arxiv.org/abs/2502.09338

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