Designing of spin-filtering devices in zigzag graphene nanoribbons heterojunctions by asymmetric hydrogenation and B-N doping

2015 ◽  
Vol 117 (1) ◽  
pp. 014311 ◽  
Author(s):  
Dan Zhang ◽  
Mengqiu Long ◽  
Xiaojiao Zhang ◽  
Fangping Ouyang ◽  
Mingjun Li ◽  
...  
Keyword(s):  
Graphene Nanoribbons ◽  
Asymmetric Hydrogenation ◽  
N Doping ◽  
Zigzag Graphene Nanoribbons ◽  
Spin Filtering

Spin-filtering and tunneling magnetoresistance effects in 6,6,12-graphyne-based molecular magnetic tunnel junctions

2019 ◽  
Vol 21 (5) ◽  
pp. 2734-2742 ◽  
Author(s):  
Jin Li ◽  
Maoyun Di ◽  
Zhi Yang ◽  
Li-Chun Xu ◽  
Yongzhen Yang ◽  
...  
Keyword(s):  
Tunnel Junctions ◽  
Graphene Nanoribbons ◽  
Magnetic Tunnel Junctions ◽  
Tunneling Magnetoresistance ◽  
Spintronic Devices ◽  
Zigzag Graphene Nanoribbons ◽  
Spin Filtering

By designing two kinds of molecular magnetic tunnel junctions based on 6,6,12-graphyne and zigzag graphene nanoribbons, the spin-filtering and tunneling magnetoresistance effects of spintronic devices can be dramatically enhanced.

Spin filtering in oxidized zigzag graphene nanoribbons

2020 ◽  
Vol 102 ◽  
pp. 107662
Author(s):  
Vipin Kumar ◽  
Venkata Sai Pavan Choudary Kolli ◽  
Shobha Shukla ◽  
Sumit Saxena
Keyword(s):  
Graphene Nanoribbons ◽  
Zigzag Graphene Nanoribbons ◽  
Spin Filtering

Bipolar spin-filtering effect in B- or N-doped zigzag graphene nanoribbons with asymmetric edge hydrogenation

2015 ◽  
Vol 379 (43-44) ◽  
pp. 2860-2865 ◽  
Author(s):  
Li-hua Wang ◽  
Zi-zhen Zhang ◽  
Jian-Guo Zhao ◽  
Bing-jun Ding ◽  
Yong Guo ◽  
...  
Keyword(s):  
Graphene Nanoribbons ◽  
Filtering Effect ◽  
Zigzag Graphene Nanoribbons ◽  
Spin Filtering

Large spin-filtering effect in Ti-doped defective zigzag graphene nanoribbon

2016 ◽  
Vol 18 (24) ◽  
pp. 16224-16228 ◽  
Author(s):  
Sherif Abdulkader Tawfik ◽  
X. Y. Cui ◽  
S. P. Ringer ◽  
C. Stampfl
Keyword(s):  
Graphene Nanoribbons ◽  
Graphene Nanoribbon ◽  
Spin Moment ◽  
Filtering Effect ◽  
Ti Doping ◽  
Zigzag Graphene Nanoribbons ◽  
Large Spin ◽  
Spin Filtering

We theoretically study the conductance of double-vacancy zigzag graphene nanoribbons doped with Ti, V, Cr and Fe, and find that Ti doping, despite possessing small spin moment at Ti site, induces large spin-filtering with an efficiency in excess of 90% for bias voltages below 0.5 V.

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