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A sketch system of N-site linear QW coupled with the left and right (L and R) FM leads on a graphene sheet, where the QW grid point is supposed to be connected with the same graphene lattice site. (b) Side view of (a), where is the hopping integral between two neighboring QW sites, and represents the wire-graphene coupling strength.
DOS for (a) up- and (b) down-spin electrons of the chain in the case of different T q, for (c) up- and (d) down-spin electrons in the case of different spin polarization, N = 10.
The bias dependences of the current and differential conductance with different wire-graphene coupling strength T q at p = 0.6, N = 6.
(a) and (b) the bias dependences of the current for different spin polarization, (c) and (d) the transmission function for different spin polarization, T q = 2Г0, N = 8.
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