• 文献标题:   Efficient spin-filter and negative differential resistance behaviors in FeN4 embedded graphene nanoribbon device
  • 文献类型:   Article
  • 作  者:   LIU N, LIU JB, YAO KL, NI Y, WANG SL
  • 作者关键词:  
  • 出版物名称:   JOURNAL OF APPLIED PHYSICS
  • ISSN:   0021-8979 EI 1089-7550
  • 通讯作者地址:   Hubei Normal Univ
  • 被引频次:   5
  • DOI:   10.1063/1.4943500
  • 出版年:   2016

▎ 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. (C) 2016 AIP Publishing LLC.