Bipolar spin-filtering effect in B- or N-doped zigzag graphene nanoribbons with asymmetric edge hydrogenation
作者： Li-hua Wang , Zi-zhen Zhang , Jian-Guo Zhao , Bing-jun Ding , Yong Guo
DOI: 10.1016/J.PHYSLETA.2015.09.020
关键词:
摘要: Abstract The spin transport properties of zigzag graphene nanoribbon (ZGNR) hetero-junctions, in which ZGNR electrodes are doped with B or N atoms, investigated based on spin-polarized density functional theory and non-equilibrium Green's function. ZGNRs C–H2 bonded at one edge C–H the other to form asymmetric hydrogenation. currents ZGNR-based nano-devices an odd even number zigzag-shaped chains show a perfect bipolar spin-filtering effect parallel anti-parallel magnetic configurations. This study provides insights into design high-performance graphene-based filters.
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