The effect of a magnetic field on the spin-selective transport in double-stranded DNA

Spin-polarization in double-stranded DNA is studied in the presence of a magnetic field applied along its helix axis using the non-equilibrium Green's function method. The spin-polarization could be tuned by changing the magnetic field. In some special cases, the double-stranded DNA behaved as...

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Bibliographic Details
Published in:Journal of applied physics 2014-05, Vol.115 (20)
Main Authors: Simchi, Hamidreza, Esmaeilzadeh, Mahdi, Mazidabadi, Hossein
Format: Article
Language:English
Subjects:
Applied physics
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Deoxyribonucleic acid
Dependence
DNA
EQUILIBRIUM
FILTERS
GREEN FUNCTION
Green's functions
MAGNETIC FIELDS
Magnetism
ORBITS
Polarization (spin alignment)
SPIN ORIENTATION
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Summary:Spin-polarization in double-stranded DNA is studied in the presence of a magnetic field applied along its helix axis using the non-equilibrium Green's function method. The spin-polarization could be tuned by changing the magnetic field. In some special cases, the double-stranded DNA behaved as a perfect spin-filter. Furthermore, the dependency of the spin-polarization on the spin-orbit strength and dephasing strength is studied.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.4878876