Negative differential resistance, perfect spin-filtering effect and tunnel magnetoresistance in vanadium-doped zigzag blue phosphorus nanoribbons

2018 ◽  
Vol 20 (32) ◽  
pp. 21105-21112 ◽  
Author(s):  
Si-Cong Zhu ◽  
Shun-Jin Peng ◽  
Kai-Ming Wu ◽  
Cho-Tung Yip ◽  
Kai-Lun Yao ◽  
...  

We investigate the electronic and transport properties of vanadium-doped zigzag blue phosphorus nanoribbons by first-principles quantum transport calculations.

2014 ◽  
Vol 1015 ◽  
pp. 389-392
Author(s):  
Y.H. Zhou ◽  
L.L. Zhou ◽  
X.H. Qiu ◽  
Y.L. Peng

The transport properties of transition metal atoms interfered alpha-graphyne nanoribbon systems are investigated by first-principles calculations combined with the Keldysh nonequilibrium Green’s method. In all, five types of configurations are considered. We find that intervention of three Cr atom in alpha-graphyne nanoribbon systems decreases the conductivity of the system. Further study show that the magnetic direction of the electrode infulence the spin filtering effect greatly, while the ralative magnetic direction of the three transition Cr atoms have little effect on the transport properties. At finite bias window, negative differential resistance happens. Proper analysis are given to explain the spin filtering phenonmenon and the different transport properties via transmission coefficient and projected density of states.


2020 ◽  
Vol 22 (26) ◽  
pp. 14773-14780 ◽  
Author(s):  
Zhi Yan ◽  
Ruiqiang Zhang ◽  
Xinlong Dong ◽  
Shifei Qi ◽  
Xiaohong Xu

The transport properties of CrI3/h-BN/n·CrI3 (n = 1, 2, 3, 4) MTJs under positive bias voltages exhibit an interesting odd-even effect. Significant tunneling magnetoresistance, a perfect spin filtering effect and remarkable negative differential resistance were obtained.


2014 ◽  
Vol 2 (32) ◽  
pp. 6648-6654 ◽  
Author(s):  
P. Zhao ◽  
Q. H. Wu ◽  
H. Y. Liu ◽  
D. S. Liu ◽  
G. Chen

The 4H-TAHDI-based spintronic device can exhibit perfect giant magnetoresistance, spin-filtering, bipolar spin-rectifying, and negative differential resistance effects simultaneously.


RSC Advances ◽  
2017 ◽  
Vol 7 (41) ◽  
pp. 25244-25252 ◽  
Author(s):  
Xiaoteng Li ◽  
Dongqing Zou ◽  
Bin Cui ◽  
Changfeng Fang ◽  
Jingfen Zhao ◽  
...  

We investigate the effects of line defects (558-defect and 57-defect) and edge hydrogenation (mono-hydrogenation and di-hydrogenation) on magnetism and spin transport of zigzag silicene nanoribbons (ZSiNRs) by first-principles calculations.


RSC Advances ◽  
2017 ◽  
Vol 7 (21) ◽  
pp. 12704-12710 ◽  
Author(s):  
Lu Zhang ◽  
Jing Huang ◽  
Weiyi Wang ◽  
Qunxiang Li ◽  
Jinlong Yang

The molecular junction based on three-shell icosahedral matryoshka cluster with huge magnetic moment exhibits robust spin-filtering effect, which highlights it for promising applications in molecular devices.


RSC Advances ◽  
2015 ◽  
Vol 5 (18) ◽  
pp. 13917-13922 ◽  
Author(s):  
Jian Shao ◽  
X. Y. Zhang ◽  
Yue Zheng ◽  
Biao Wang ◽  
Yun Chen

The transport properties of heterometallic n-alkanedithiol junctions were investigated via first-principles calculations.


2011 ◽  
Vol 181-182 ◽  
pp. 312-315
Author(s):  
Cai Juan Xia ◽  
Ying Tang Zhang ◽  
Xue Jun Zai

Based on nonequilibrium Green’s function and first-principles calculation, we investigate the transport properties of the molecule device with a donor-acceptor molecular complex sandwiched between two electrodes. Numerical results show that a negative differential resistance under applied bias can be observed. The mechanism of negative differential resistance is mainly induced by the orbital match of molecule and electrodes as well as intermolecular charge transfer.


2018 ◽  
Vol 20 (46) ◽  
pp. 29440-29445 ◽  
Author(s):  
Shenghui Zhang ◽  
Yiqun Xie ◽  
Yibin Hu ◽  
Xiaobin Niu ◽  
Yin Wang

Fully spin-polarized current and negative differential resistance (NDR) are two important electronic transport properties for spintronic nanodevices based on two-dimensional materials.


2017 ◽  
Vol 5 (45) ◽  
pp. 11856-11866 ◽  
Author(s):  
Aldilene Saraiva-Souza ◽  
Manuel Smeu ◽  
José Gadelha da Silva Filho ◽  
Eduardo Costa Girão ◽  
Hong Guo

Strong negative differential resistance (NDR) behavior with a remarkable current peak-to-valley ratio for armchair C2N-hNRs and non-linear current–voltage characteristics for zigzag C2N-hNRs.


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