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Updated: May 18, 2026

CD Spectroscopy to Study DNA-Protein Interactions
Published on: February 10, 2022
Spin-selective transport of electrons in DNA double helix
1Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.
Abstract:
The experiment that the high spin selectivity and the length-dependent spin polarization are observed in double-stranded DNA [Science 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 parameter dependence of the spin polarization are studied.
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