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Goos–Hänchen effect of spin electron beams in the non-collinear double δ-barrier magnetic nanostructure

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Abstract

Since the charge transport has a sensitive property near the boundary, the GH shift and spin polarization are reexamined with a parallel double barrier magnetic nanostructure. It shows there exists a much stronger GH shift and spin polarization when the transmitted wave vector is much closer to zero by modulating the magnetic fields strength and incident energy. Furthermore, the influence on spin polarization is studied by changing the angle between two magnetic fields. It revealed that a stable spin polarization can be obtained by changing angle under some specific applied voltage and incident energies. Our results indicate a need for caution in boundary condition and tuning of angle. These interesting properties may provide good ideas to design and fabricate a spin beam splitters or filters.

Graphical abstract

The influence of the symmetry breaking of magnetic fields on the spin polarization is studied by changing the angle between both magnetic fields.

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Data availability statement

This manuscript has no associated data or the data will not be deposited. [Authors’ comment: All results are obtained directly from simulations and all data can be read from this published article.]

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Acknowledgements

We appreciate financial support of the Doctoral Research foundation via No. XYBY202016 and No. XYBY202008, and Innovation Foundation of Gansu Provincial Department of Education via No. 2021B-276.

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Authors and Affiliations

  1. College of Electrical Engineering, Longdong University, Qingyang, 745000, Gansu, People’s Republic of China

    Lishuai Guo, Jianfeng Li, Xiaolu Zhu & Sheng Tuo

Authors
  1. Lishuai Guo
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  2. Jianfeng Li
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  3. Xiaolu Zhu
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  4. Sheng Tuo
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Contributions

LSG conceived the presented idea. LSG and ST performed the computations. The authors contributed to the scientific discussions and the final version of the manuscript.

Corresponding author

Correspondence to Lishuai Guo.

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Guo, L., Li, J., Zhu, X. et al. Goos–Hänchen effect of spin electron beams in the non-collinear double δ-barrier magnetic nanostructure. Eur. Phys. J. B 95, 2 (2022). https://doi.org/10.1140/epjb/s10051-021-00262-0

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  • DOI: https://doi.org/10.1140/epjb/s10051-021-00262-0

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