Enhanced spin-polarized transport through DNA double helix by gate voltage

Abstract

We report on a way to manipulate the spin transport through double-stranded DNA contacted by normal-metal electrodes. On the basis of an effective model Hamiltonian, the conductance and the spin polarization are calculated in the presence of a gate voltage by using the Landauer-Büttiker formula. Our results indicate that the spin polarization presents strong dependence on the magnitude as well as the direction of the gate voltage. The spin polarization can be significantly enhanced by tuning the gate voltage and shows oscillating behavior with increasing the DNA length.

arXiv comment6 pages, 6 figures

References in corpus (10)

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• Spin-Selective Transport of Electron in DNA Double Helix
• Quantum transport theory for nanostructures with Rashba spin-orbital interaction
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• Tight-binding parameters for charge transfer along DNA
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• Spin injection into a short DNA chain

Cited by in corpus (18)

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• Green's function methods for single molecule junctions
• Contact effects in spin transport along double-helical molecules
• Effect of gate voltage on spin transport along $\alpha$-helical protein
• Electronic structure and carrier transfer in B-DNA monomer polymers and dimer polymers: Stationary and time-dependent aspects of wire model vs. extended ladder model
• Topological states and quantized current in helical molecules
• Spin-selective transmission through a single-stranded magnetic helix
• Temperature-dependence of the chirality-induced spin selectivity effect -- experiments and theory
• Dynamical theory of chiral-induced spin selectivity in electron donor-chiral molecule-acceptor systems
• Topological phase transitions of Thouless charge pumping realized in helical organic molecules with long-range hoppings
• The spinterface mechanism for the chiral-induced spin selectivity effect: A Critical Perspective
• Local equilibria and state transfer of charged classical particles on a helix in an electric field
• Electronic transport in single-helical protein molecules: Effects of multiple charge conduction pathways and helical symmetry
• Critical analysis of multiple reentrant localization in an antiferromagnetic helix with transverse electric field: Hopping dimerization-free scenario
• Spin-to-charge conversion modulated by chiral molecules
• Proximity-induced superconductivity effect in a double-stranded DNA
• Trivial and Non-trivial Superconductivity in dsDNA