Edge defect switched dual spin filter in zigzag hexagonal boron nitride nanoribbons

2018 ◽  
Vol 20 (14) ◽  
pp. 9241-9247 ◽  
Author(s):  
Yan-Dong Guo ◽  
Hui-Feng Liu ◽  
Hong-Li Zeng ◽  
Xiao-Hong Yan ◽  
Xiao-Chen Song

Edge defects make a zigzag hexagonal boron nitride nanoribbon operate as a dual-spin filter, and this is not affected by the ribbon's width and the defect's length.

2010 ◽  
Vol 19 (8) ◽  
pp. 086105 ◽  
Author(s):  
Chen Feng ◽  
ChenYuan-Ping ◽  
Zhang Mi ◽  
Zhong Jian-Xin

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
G. A. Nemnes

The spin transport properties are investigated by means of the first principle approach for boron nitride nanoribbons with one or two substitutional Mn impurities, connected to graphene electrodes. The spin current polarization is evaluated using the nonequilibrium Green’s function formalism for each structure and bias. The structure with one Mn impurity reveals a transfer characteristics suitable for a spin current switch. In the case of two Mn impurities, the system behaves as an efficient spin-filter device, independent on the ferromagnetic or antiferromagnetic configurations of the magnetic impurities. The experimental availability of the building blocks as well as the magnitudes of the obtained spin current polarizations indicates a strong potential of the analyzed structures for future spintronic devices.


Author(s):  
Ramiro Marcelo dos Santos ◽  
William F Giozza ◽  
Rafael T de Sousa Junior ◽  
Demetrio Antonio da Silva Filho ◽  
Renato dos Santos ◽  
...  

2017 ◽  
Vol 19 (5) ◽  
pp. 4085-4092 ◽  
Author(s):  
Lin Zhu ◽  
Ruimin Li ◽  
Kailun Yao

Thermal spin transport properties of graphene and hexagonal boron nitride nanoribbon heterojunctions have been investigated using density functional theory calculations combined with the Keldysh nonequilibrium Green's function approach.


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