Non-magnetic doping induced a high spin-filter efficiency and large spin Seebeck effect in zigzag graphene nanoribbons

2013 ◽  
Vol 1 (48) ◽  
pp. 8046 ◽  
Author(s):  
Yu-Shen Liu ◽  
Xue-Feng Wang ◽  
Feng Chi
Keyword(s):  
High Spin ◽  
Graphene Nanoribbons ◽  
Seebeck Effect ◽  
Spin Filter ◽  
Filter Efficiency ◽  
Spin Seebeck Effect ◽  
Magnetic Doping ◽  
Zigzag Graphene Nanoribbons ◽  
Large Spin

High spin-filter efficiency and Seebeck effect through spin-crossover iron–benzene complex

2016 ◽  
Vol 144 (15) ◽  
pp. 154304 ◽  
Author(s):  
Qiang Yan ◽  
Liping Zhou ◽  
Jue-Fei Cheng ◽  
Zhongqian Wen ◽  
Qin Han ◽  
...  
Keyword(s):  
High Spin ◽  
Spin Crossover ◽  
Seebeck Effect ◽  
Spin Filter ◽  
Filter Efficiency

scholarly journals How to realize the spin-Seebeck effect with a high spin figure of merit in magnetic boron–nitrogen nanoribbon and nanotube structures?

2018 ◽  
Vol 6 (39) ◽  
pp. 10603-10610 ◽  
Author(s):  
Dan-Dan Wu ◽  
Hua-Hua Fu ◽  
Qing-Bo Liu ◽  
Ruqian Wu
Keyword(s):  
High Spin ◽  
Figure Of Merit ◽  
Seebeck Effect ◽  
The Core ◽  
Spin Caloritronics ◽  
Spin Seebeck Effect ◽  
Boron Nitrogen

The spin-Seebeck effect (SSE) has been regarded as one of the core topics in spin caloritronics.

Electron Transport in Zigzag Graphene Nanoribbons with a Tetra-Vacancy Complex: A Perfect Spin Filter

2014 ◽  
Vol 937 ◽  
pp. 207-213 ◽  
Author(s):  
Wei Lu ◽  
San Huang Ke
Keyword(s):  
Electronic Structure ◽  
Electron Transport ◽  
First Principles ◽  
Graphene Nanoribbons ◽  
Wide Energy Range ◽  
First Principles Calculations ◽  
Spin Filter ◽  
Spin Polarized ◽  
Wide Energy ◽  
Zigzag Graphene Nanoribbons

A novel doping scheme for graphene was recently realized experimentally by creating different vacancy complexes doped with a transition metal (TM) atom [nanoLett. 12, 141 (2012)]. This provides a new reliable way to modifying the electronic structure and transport property of graphene. Here, we show, by performing first-principles calculations, that the defect complex of TM@V4(a TM atom doped tetra-vacancy) in zigzag graphene nanoribbons (ZGNRs) can lead to a 100% spin-polarized electron transport in a wide energy range around the Fermi energy. Analyses show that this is due to the particular atomic structure of the TM@V4complex regardless of the species of the TM atom.

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.

The design of spin filter junction in zigzag graphene nanoribbons with asymmetric edge hydrogenation

2013 ◽  
Vol 14 (12) ◽  
pp. 3240-3248 ◽  
Author(s):  
X.Q. Deng ◽  
Z.H. Zhang ◽  
C.H. Yang ◽  
H.L. Zhu ◽  
B. Liang
Keyword(s):  
Graphene Nanoribbons ◽  
Spin Filter ◽  
Zigzag Graphene Nanoribbons
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