Spin transport properties of Fe, Co and Ni doped hydrogenated zigzag silicene nanoribbons: Negative differential resistance and spin filtering effect

2019 ◽  
Vol 125 ◽  
pp. 95-102 ◽  
Author(s):  
Mojtaba Akbarzadeh ◽  
Mahmood Rezaee Roknabadi ◽  
Shaban Reza Ghorbani ◽  
Mohammad Behdani
Keyword(s):  
Transport Properties ◽  
Negative Differential Resistance ◽  
Spin Transport ◽  
Differential Resistance ◽  
Silicene Nanoribbons ◽  
Filtering Effect ◽  
Spin Filtering

scholarly journals Edge hydrogenation-induced spin-filtering and negative differential resistance effects in zigzag silicene nanoribbons with line defects

RSC Advances ◽  
2017 ◽  
Vol 7 (41) ◽  
pp. 25244-25252 ◽  
Author(s):  
Xiaoteng Li ◽  
Dongqing Zou ◽  
Bin Cui ◽  
Changfeng Fang ◽  
Jingfen Zhao ◽  
...  
Keyword(s):  
First Principles ◽  
Negative Differential Resistance ◽  
Spin Transport ◽  
Differential Resistance ◽  
First Principles Calculations ◽  
Line Defects ◽  
Silicene Nanoribbons ◽  
Spin Filtering

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.

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 ◽  
...  
Keyword(s):  
Transport Properties ◽  
Quantum Transport ◽  
First Principles ◽  
Negative Differential Resistance ◽  
Differential Resistance ◽  
Tunnel Magnetoresistance ◽  
Filtering Effect ◽  
Spin Filtering

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

Significant tunneling magnetoresistance and excellent spin filtering effect in CrI3-based van der Waals magnetic tunnel junctions

2020 ◽  
Vol 22 (26) ◽  
pp. 14773-14780 ◽  
Author(s):  
Zhi Yan ◽  
Ruiqiang Zhang ◽  
Xinlong Dong ◽  
Shifei Qi ◽  
Xiaohong Xu
Keyword(s):  
Transport Properties ◽  
Negative Differential Resistance ◽  
Tunnel Junctions ◽  
Van Der Waals ◽  
Magnetic Tunnel Junctions ◽  
Differential Resistance ◽  
Tunneling Magnetoresistance ◽  
Positive Bias ◽  
Filtering Effect ◽  
Spin Filtering

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.

A first-principles study of the spin transport properties of a 4H-TAHDI-based multifunctional spintronic device with graphene nanoribbon electrodes

2014 ◽  
Vol 2 (32) ◽  
pp. 6648-6654 ◽  
Author(s):  
P. Zhao ◽  
Q. H. Wu ◽  
H. Y. Liu ◽  
D. S. Liu ◽  
G. Chen
Keyword(s):  
Transport Properties ◽  
First Principles ◽  
Negative Differential Resistance ◽  
Giant Magnetoresistance ◽  
Spin Transport ◽  
Differential Resistance ◽  
Graphene Nanoribbon ◽  
Spintronic Device ◽  
First Principles Study ◽  
Spin Filtering

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

scholarly journals Electronic and transport behavior of doped armchair silicene nanoribbons exhibiting negative differential resistance and its FET performance

RSC Advances ◽  
2017 ◽  
Vol 7 (21) ◽  
pp. 12783-12792 ◽  
Author(s):  
Sukhbir Singh ◽  
Abir De Sarkar ◽  
Bijender Singh ◽  
Inderpreet Kaur
Keyword(s):  
Transport Properties ◽  
Negative Differential Resistance ◽  
Differential Resistance ◽  
Transport Behavior ◽  
Silicene Nanoribbons

The electronic and transport properties of armchair silicene nanoribbons (ASiNRs) doped with various elements are investigated.

Remarkable negative differential resistance and perfect spin-filtering effects of the indium triphosphide (InP3) monolayer tuned by electric and optical ways

2018 ◽  
Vol 20 (46) ◽  
pp. 29440-29445 ◽  
Author(s):  
Shenghui Zhang ◽  
Yiqun Xie ◽  
Yibin Hu ◽  
Xiaobin Niu ◽  
Yin Wang
Keyword(s):  
Transport Properties ◽  
Electronic Transport ◽  
Negative Differential Resistance ◽  
Differential Resistance ◽  
Two Dimensional ◽  
Electronic Transport Properties ◽  
Two Dimensional Materials ◽  
Spin Polarized ◽  
Spin Filtering

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

scholarly journals Negative differential resistance and magnetoresistance in zigzag borophene nanoribbons

2018 ◽  
Vol 32 (04) ◽  
pp. 1850033 ◽  
Author(s):  
Jiayi Liu ◽  
Jiaxin Wu ◽  
Changpeng Chen ◽  
Lu Han ◽  
Ziqing Zhu ◽  
...  
Keyword(s):  
Transport Properties ◽  
Negative Differential Resistance ◽  
Differential Resistance ◽  
First Principles Calculations ◽  
Maximum Value ◽  
Current Voltage ◽  
Magnetic Transport ◽  
Filtering Effect ◽  
Bias Range ◽  
Opposite Magnetization

Since borophene has been grown experimentally, its extraordinary characteristics have attracted more and more attentions. In this paper, we construct pristine zigzag-edged borophene nanoribbons (ZBNRs) of different widths to study the transport properties, using the first-principles calculations. The differences of the quantum transport properties are discussed, where even-N ZBNRs and odd-N ZBNRs have different current–voltage relationships. Especially, the negative differential resistance (NDR) can be observed within certain bias range in 5-ZBNR and 7-ZBNR, while 6-ZBNR behaves like a metal whose current rises with the increase of the voltage. Moreover, borophene nanoribbon shows interesting magnetic transport properties. The spin-filtering effect can be revealed when the two electrodes have opposite magnetization directions. Besides, the magnetoresistance effect appears to exist in even-N ZBNRs and the maximum value can reach 70%. The mechanisms of these phenomena are proposed in detail.

Study on Spin Transport Properties in Transition Metal Atoms Interfered Alpha-Graphyene Nanoribbon Systems

2014 ◽  
Vol 1015 ◽  
pp. 389-392
Author(s):  
Y.H. Zhou ◽  
L.L. Zhou ◽  
X.H. Qiu ◽  
Y.L. Peng
Keyword(s):  
Transition Metal ◽  
Transport Properties ◽  
First Principles ◽  
Differential Resistance ◽  
First Principles Calculations ◽  
Metal Atoms ◽  
Transition Metal Atoms ◽  
Filtering Effect ◽  
Proper Analysis ◽  
Spin Filtering

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.

SPIN-FILTERING, RECTIFYING AND NEGATIVE DIFFERENTIAL RESISTANCE BEHAVIORS IN Co(dmit)2 MOLECULAR DEVICES WITH MONATOMIC (C, Fe, Au) ELECTRODES

SPIN ◽  
2014 ◽  
Vol 04 (02) ◽  
pp. 1440016
Author(s):  
SHENLANG YAN ◽  
MENGQIU LONG ◽  
XIAOJIAO ZHANG ◽  
JUN HE ◽  
HUI XU ◽  
...  
Keyword(s):  
Single Molecule ◽  
Negative Differential Resistance ◽  
Density Functional ◽  
Electrode Materials ◽  
Energy Levels ◽  
Differential Resistance ◽  
Interesting Phenomenon ◽  
Filtering Effect ◽  
Dependent Transport ◽  
Spin Filtering

Using nonequilibrium Green's functions (NEGFs) combined with the density functional theory (DFT), we study the electronic transport properties of a single molecule magnet Co ( dmit )2, which is sandwiched between two monatomic chain electrodes, and the different electrode materials carbon, iron and gold, have been considered. The results show that the electrodes play a crucial role in the spin-dependent transport of the Co ( dmit )2 molecular device, and some interesting phenomenon, such as perfect spin-filtering effect, rectifying and negative differential resistance (NDR) can be observed. We demonstrated that the magnetic Fe electrode can lead to high spin-flittering effect, and the different hybridization and alignment of energy levels between the molecule and the electrodes may be responsible for the rectification performance, and the distributions (delocalization or localization) of the frontier molecular orbitals under different bias result in the NDR behaviors. These characteristics could be used in the study of spin physics and the realization of nanospintronic devices.

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