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Spin transport in helical biological systems



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Díaz García, Elena y Gutierrez, Rafael (2014) Spin transport in helical biological systems. In 15th International Conference on Transport in Interacting Disordered Systems (TIDS15). AIP Conference Proceedings (1610). Amer Inst Physics, p. 6. ISBN 978-0-7354-1246-0

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URL Oficial: http://dx.doi.org/10.1063/1.4893525

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Motivated by the recent experimental demonstration of spin selective effects in monolayers of double-stranded DNA oligomers, our work presents a minimal model to describe electron transmission through helical fields. Our model highlight that the lack of inversion symmetry due to the chirality of the potential is a key factor which will lead to a high spin-polarization (SP). We also study the stability of the SP against fluctuations of the electronic structure induced by static disorder affecting the on-site energies. In the energy regions where the spin- filtering occurs, our results remain stable against moderate disorders although the SP is slightly reduced.

Tipo de documento:Sección de libro
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© 2014 AIP Publishing LLC 978-0-7354-1246-0/$30.00.
ISSN: 0094-243X
International Conference on Transport in Interacting Disordered Systems (15. 2013. Sant Feliu de Guixols, España).
This work was supported by the Ministerio de Economia y Comptetitividad (MINECO) project PRI-AIBDE-2011-0927 and by the projectGerman Academic Exchange Service (DAAD) 54367888 within the joint program Acciones Integradas. Computational resources were provided by the ZIH at TU-Dresden. E.D was further supported by MINECO project MAT 2010-17180. R.G. acknowledges support from the German Excellence Initiative: Cluster of Excellence EXC 1056 "Center for Advancing Electronics Dresden" (cfAED).

Palabras clave:Spin-filtering; DNA-molecules; helical field; Anderson disorder
Materias:Ciencias > Física > Física de materiales
Ciencias > Física > Física del estado sólido
Código ID:42748
Depositado:25 May 2017 18:06
Última Modificación:06 Jun 2017 07:27

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