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arXiv · 1201.4888

Spin-Selective Transport of Electron in DNA Double Helix

Ai-Min Guo·Qing-feng Sun
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Abstract

The experiment that the high spin selectivity and the length-dependent spin polarization are observed in double-stranded DNA [Science ${\bf 331}$, 894 (2011)], is elucidated by considering the combination of the spin-orbit coupling, the environment-induced dephasing, and the helical symmetry. We show that the spin polarization in double-stranded DNA is significant even in the case of weak spin-orbit coupling, while no spin polarization appears in single-stranded DNA. Furthermore, the underlying physical mechanism and the parameters-dependence of the spin polarization are studied.

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Ai-Min Guo, Qing-feng Sun. 2012-01-23. Spin-Selective Transport of Electron in DNA Double Helix. https://doi.org/10.1103/physrevlett.108.218102

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