自旋电子学
之字形的
凝聚态物理
材料科学
铁磁性
密度泛函理论
反铁磁性
掺杂剂
自旋(空气动力学)
自旋极化
GSM演进的增强数据速率
兴奋剂
宽禁带半导体
光电子学
物理
化学
计算化学
电信
热力学
电子
量子力学
计算机科学
数学
几何学
作者
Xixi Tao,Hua Hao,Xianlong Wang,Xiaohong Zheng,Zhi Zeng
摘要
Intrinsic half-metallicity recently reported in zigzag edged SiC nanoribbons is basically undetectable due to negligible energy difference between the antiferromagnetic (AFM) and ferromagnetic (FM) configurations. In this Letter, by density functional theory calculations, we demonstrate a scheme of N doping at the carbon edge to selectively close the edge state channel at this edge and achieve 100% spin filtering, no matter whether it is in an AFM state or FM state. This turns SiC nanoribbon into a promising material for obtaining stable and completely spin polarized transport and may find application in spintronic devices.
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