Abstract
Abstract We theoretically investigate the influences of the Dzyaloshinskii–Moriya interaction (DMI) on the spin-polarized transport through a single-molecular magnets, which is weakly coupled to ferromagnetic lead- L ( p L ) and nonmagnetic lead-R. The spin current is obtained by means of the rate-equation approach in the sequential-tunneling region. Due to the coherent superposition of the molecular state | 1 , m 〉 ± induced by the DMI, we can observe the continuous pure spin current and negative differential conductance (NDC) under the full polarization p L = 1 condition and polarization reversal of spin-current in the case of 0 p L 1 . These novel phenomena may be useful in the development of molecular spintronics devices.
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