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Spontaneous Spin Polarized Tunneling Current Through a Quantum Dot Array
並列摘要
A Hubbard model including coupling to leads is used to study the tunneling current of the quantum dot array (QDA) system as a function of the gate voltage. It is found that, due to the weak interdot coupling and strong Coulomb repulsion, a ferromagnetic phase exists in the QDA within a window of the gate voltage. Therefore a QDA may be used as a spin filter to provide a spin-polarized current source.
並列關鍵字
無資料被引用紀錄
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延伸閱讀
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