磁性
自旋电子学
之字形的
凝聚态物理
材料科学
电场
联轴节(管道)
GSM演进的增强数据速率
磁矩
铁磁性
物理
量子力学
电信
冶金
计算机科学
数学
几何学
作者
Liang Liu,Xue Ren,Jihao Xie,Heng Chen,Weikang Liu,Taiyu An,Hongwei Qin,Jifan Hu
标识
DOI:10.1016/j.apsusc.2019.02.203
摘要
The realization of strong magnetoelectric (ME) coupling for efficiently controlling of magnetism is urgently needed but still a significant challenge. Based on first-principle calculations and effective Hubbard models, we demonstrated that the polar charges and locality of edge states in hexagonal BN nanoribbons (BNNRs) play key roles in the behavior of edge magnetism M. By applying a transverse electric field, the magnetism in both zigzag and armchair edges can be regulated sufficiently. In particular, the magnetic on/off switches can be realized in armchair edges, it is robust against various edge decorations including hydrogenation, fluoridation and hydroxylation. Furthermore, uniaxial tensile strains can also produce significant magnetic modulation in Z-BNNRs, which stem from the piezoelectricity. All these suggest that h-BNNRs are ideal platforms for ME coupling researching and promising candidates for functional spintronics application.
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