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oai:docta.ucm.es:20.500.14352/426572023-08-25T15:13:51Zcom_20.500.14352_14col_20.500.14352_15

Gutierrez, R. Díaz García, Elena Naaman,, R. Cuniberti, G. 2023-06-20T00:30:04Z 2023-06-20T00:30:04Z 2012-02-16 1098-0121 10.1103/PhysRevB.85.081404 https://hdl.handle.net/20.500.14352/42657 http://dx.doi.org/10.1103/PhysRevB.85.081404 https://journals.aps.org Highly spin-selective transport of electrons through a helically shaped electrostatic potential is demonstrated in the frame of a minimal model approach. The effect is significant even for weak spin-orbit coupling. Two main factors determine the selectivity: an unconventional Rashba-like spin-orbit interaction, reflecting the helical symmetry of the system, and a weakly dispersive electronic band of the helical system. The weak electronic coupling, associated with the small dispersion, leads to a low mobility of the charges in the system and allows even weak spin-orbit interactions to be effective. The results are expected to be generic for chiral molecular systems displaying low spin-orbit coupling and low conductivity. eng open access Spin-selective transport through helical molecular systems journal article