Spin-Selective Transport of Electron in DNA Double Helix

2012/01/23 by Ai-Min Guo, Qing-feng Sun · 3 citations
Physics and Astronomy · #cond-mat.mes-hall #physics.bio-ph

paper · pdf · doi:10.1103/physrevlett.108.218102

published as Phys. Rev. Lett. 108, 218102 (2012) · 5 pages; 4 figures

arxiv created 2012/01/23 · arxiv updated 2015/06/03

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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