自旋电子学
石墨烯
凝聚态物理
反平行(数学)
自旋(空气动力学)
材料科学
铁磁性
物理
纳米技术
量子力学
热力学
磁场
作者
N. Liu,J. B. Liu,K.L. Yao,Yun Ni,S. L. Wang
摘要
In this paper, we propose a new device of spintronics by embedding two FeN4 molecules into armchair graphene nanoribbon and sandwiching them between N-doped graphene nanoribbon electrodes. Our first-principle quantum transport calculations show that the device is a perfect spin filter with high spin-polarizations both in parallel configuration (PC) and antiparallel configuration (APC). Moreover, negative differential resistance phenomena are obtained for the spin-down current in PC, and the spin-up and spin-down currents in APC. These transport properties are explained by the bias-dependent evolution of molecular orbitals and the transmission spectra.
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