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The multi-terminal quantum transport in a dot-array through an AB ring is studied via single-band tight-binding Hamiltonian. It is shown that the output spin current is a periodic function of the magnetic flux in the quantum unit Φ0. Moreover, we can get the spin current with contrary spin polarization in the same energy range in different terminals.
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Keywords:
- spin-polarized transport /
- quantum dot /
- polarization /
- spin current
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