Magnetic switching of spin-scattering centers in Dresselhaus [110] circuits
arXiv (Cornell University)(2023)
摘要
Spin carriers subject to Dresselhaus [110] (D110) spin-orbit coupling (SOC)
gather null spin phases in closed circuits, contrary to usual Rashba and
Dresselhaus [001] SOC. We show that D110 spin phases can be activated in square
circuits by introducing an in-plane Zeeman field, where localized field
inhomogeneities act as effective spin-scattering centers. Our simulations show
rich interference patterns in the quantum conductance, which work as maps for a
geometric classification of the propagating spin states. We also find that
disorder facilitates low-field implementations.
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关键词
magnetic switching,circuits,spin-scattering
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