Spin-Dependent Effects in Helical Molecular Systems with Rashba-Like Spin-Orbit Interaction

• Authors: R. Gutierrez , G. Cuniberti
• Languages of publication: EN

Abstracts

EN

Strong spin-selective effects have been recently observed in both photoemission and electrical transport experiments in biomolecular systems, opening fascinating possibilities for interfacing semiconductor and biomolecular systems to create highly efficient spintronics devices. From the theoretical and experimental point of view there are strong suggestions that molecular chirality is playing a crucial role. In this study we extend a previously formulated model (R. Gutierrez, E. Díaz, R. Naaman, G. Cuniberti, Phys. Rev. B 85, 081404 (2012)) describing the linear propagation of a charge with spin along the axis of a helical charge distribution. We explore different parameter regions and show that a strong negative spin polarization as observed in the previously mentioned experiments can be obtained with reasonable values of both the electronic coupling elements and the helical field induced spin-orbit interaction.

Keywords

EN

73.22.-f; 73.63.-b; 72.25.-b; 87.14.gk; 87.15.Pc

Discipline

• 72.25.-b: Spin polarized transport(for spin polarized transport devices, see 85.75.-d)
• 73.63.-b: Electronic transport in nanoscale materials and structures(see also 73.23.-b Electronic transport in mesoscopic systems)
• 73.22.-f: Electronic structure of nanoscale materials and related systems
• 87.15.Pc: Electronic and electrical properties
• 87.14.gk: DNA

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 2
• Pages: 185-191

Dates

published

2015-02

Contributors

author

R. Gutierrez

• Institute for Materials Science, Dresden University of Technology, 01062 Dresden, Germany

author

G. Cuniberti

• Institute for Materials Science, Dresden University of Technology, 01062 Dresden, Germany
• Dresden Center for Computational Materials Science and Center for Advancing Electronics Dresden
• Dresden University of Technology, 01062 Dresden, Germany

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Identifiers

DOI

10.12693/APhysPolA.127.185