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- W3016975916 abstract "Spin-orbit interactions in solids have inspired innovative physics for spin-based technologies. One such example is the persistent spin helix, where spin-orbit interactions from the semiconductor lattice are balanced with those in asymmetric quantum wells, to create long-lived spin textures. Spin transport in the presence of the momentum-dependent spin-orbit interactions lead to Larmor precession and subsequent dephasing that challenges the design of current spin-based information processing devices. We demonstrate that external magnetic fields can be applied to overcome this issue for spin-polarized charge carriers transported by in-plane electric fields. A frame of reference picture is introduced to describe the emergence and dynamics of the polarization-locked spin-wave packet after optical excitation. Applying well-matched magnetic fields maintains the persistent spin-helix profile regardless of whether the frame of reference is in motion or not. Monte Carlo simulations allow this traveling persistent spin-helix concept to be extended to a proposed spin Hall-effect transistor to ease design requirements." @default.
- W3016975916 created "2020-04-24" @default.
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- W3016975916 date "2020-04-15" @default.
- W3016975916 modified "2023-10-14" @default.
- W3016975916 title "Spin-locked transport in a two-dimensional electron gas" @default.
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- W3016975916 doi "https://doi.org/10.1103/physrevb.101.155414" @default.
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