Chirality-induced spin selectivity by variable-range hopping along DNA double helix

Ryotaro Sano; Takeo Kato

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arXiv · 2404.19000

Chirality-induced spin selectivity by variable-range hopping along DNA double helix

Ryotaro Sano·Takeo Kato

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Abstract

We here present a variable-range hopping model to describe the chirality-induced spin selectivity along the DNA double helix. In this model, DNA is considered as a one-dimensional disordered system, where electrons are transported by chiral phonon-assisted hopping between localized states. Owing to the coupling between the electron spin and the vorticity of chiral phonons, electric toroidal monopole appears in the charge-to-spin conductances as a manifestation of true chirality. Our model quantitatively explains the temperature dependence of the spin polarization observed in experiments.

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Ryotaro Sano, Takeo Kato. 2024-04-29. Chirality-induced spin selectivity by variable-range hopping along DNA double helix. https://arxiv.org/abs/2404.19000

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