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- Aad, G, et al.
(författare)
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- 2015
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swepub:Mat__t
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- Cabra, D. C., et al.
(författare)
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Half-metal phases in a quantum wire with modulated spin-orbit interaction
- 2017
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Ingår i: Physical Review B. - 2469-9950. ; 96:20
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Tidskriftsartikel (refereegranskat)abstract
- We propose a spin filter device based on the interplay of a modulated spin-orbit interaction and a uniform external magnetic field acting on a quantum wire. Half-metal phases, where electrons with only a selected spin polarization exhibit ballistic conductance, can be tuned by varying the magnetic field. These half-metal phases are proven to be robust against electron-electron repulsive interactions. Our results arise from a combination of explicit band diagonalization, bosonization techniques, and extensive density matrix renormalization group computations.
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