Enhanced photon-assisted spin transport in a quantum dot attached to ferromagnetic leads
Enhanced photon-assisted spin transport in a quantum dot attached to ferromagnetic leads
We investigate real-time dynamics of spin-polarized current in a quantum dot coupled to ferromagnetic leads in both parallel and antiparallel alignments. While an external bias voltage is taken constant in time, a gate terminal, capacitively coupled to the quantum dot, introduces a periodic modulation of the dot level. Using non …