空位缺陷
磁性
磁矩
磷
过渡金属
材料科学
原子轨道
兴奋剂
铁磁性
单层
凝聚态物理
密度泛函理论
工程物理
磷烯
电子结构
黑磷
金属
化学物理
费米能级
结晶学
带隙
无机化学
自旋电子学
光电子学
化学
纳米技术
有机化学
冶金
物理
电子
催化作用
量子力学
生物化学
作者
Yiren Wang,Anh T. Pham,Sean Li,Jiabao Yi
标识
DOI:10.1021/acs.jpcc.6b00981
摘要
We investigate the structural, electronic, and magnetic properties of monolayer black phosphorus (M-BP) doped with 3d transition-metal elements by considering defects and defect complexes. The results show that pristine M-BP is nonmagnetic. P vacancy (VP) can be magnetic with a rather high formation energy, and the (VP + VP) complex is nonmagnetic as well. Doping with transition metals of V, Cr, Mn, Fe, or Ni can induce magnetism, but Co doping will not. The magnetism is originated from their d orbitals. The formation energies of Mn, Co, and Fe doping can be significantly reduced with the existence of P vacancy by the formation of a substitutional and P vacancy (TMP + VP) defect complex. In addition, (CoP + VP) has a magnetic moment of 0.10 μB, further demonstrating the important role of vacancy in the doping of transition-metal elements in M-BP.
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