Strain modulation on spin transport properties of PTB junction with MoC2 electrodes

Author(s):  
Yaoxing Sun ◽  
Bei Zhang ◽  
shidong zhang ◽  
Dan Zhang ◽  
Jiwei Dong ◽  
...  

Based on MoC2 nanoribbons and poly-(terphenylene-butadiynylene) (PTB) molecules, we designed MoC2-PTB molecular spintronic devices and investigated their spin-dependent electron transport properties by using spin-polarized density functional theory and non-equilibrium Green's...

RSC Advances ◽  
2016 ◽  
Vol 6 (65) ◽  
pp. 60223-60230 ◽  
Author(s):  
Munish Sharma ◽  
Ashok Kumar ◽  
P. K. Ahluwalia

Electronic, optical and transport properties of DNA nucleobase adsorbed on monolayer MoS2 has been investigated using density functional theory.


2015 ◽  
Vol 17 (17) ◽  
pp. 11292-11300 ◽  
Author(s):  
Dongqing Zou ◽  
Bin Cui ◽  
Xiangru Kong ◽  
Wenkai Zhao ◽  
Jingfen Zhao ◽  
...  

A series of n-acene–graphene (n = 3, 4, 5, 6) devices, in which n-acene molecules are sandwiched between two zigzag graphene nanoribbon (ZGNR) electrodes, are modeled through the spin polarized density functional theory combined with the non-equilibrium Green's function technique.


2014 ◽  
Vol 16 (37) ◽  
pp. 20157-20163 ◽  
Author(s):  
Ashok Kumar ◽  
Douglas Banyai ◽  
P. K. Ahluwalia ◽  
Ravindra Pandey ◽  
Shashi P. Karna

The stability, electronic structure, and electron transport properties of metallic monoatomic wires anchored on the MoS2 monolayer are investigated within the density functional theory.


2021 ◽  
Author(s):  
John Shen ◽  
Haiying He ◽  
Turbasu Sengupta ◽  
Dinesh Bista ◽  
Arthur C. Reber ◽  
...  

The electronic transport properties of PAl12-based cluster complexes are investigated by density functional theory (DFT) in combination with the non-equilibrium Green’s function (NEGF) method. Joining two PAl12 clusters via a...


RSC Advances ◽  
2015 ◽  
Vol 5 (33) ◽  
pp. 26438-26442 ◽  
Author(s):  
G. A. Nemnes ◽  
Camelia Visan

The transport properties of fulgide-based photochromic switches are investigated in the framework of density functional theory calculations.


2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Petros-Panagis Filippatos ◽  
Nikolaos Kelaidis ◽  
Maria Vasilopoulou ◽  
Dimitris Davazoglou ◽  
Nektarios N. Lathiotakis ◽  
...  

AbstractTitanium dioxide represents one of the most widely studied transition metal oxides due to its high chemical stability, non-toxicity, abundance, electron transport capability in many classes of optoelectronic devices and excellent photocatalytic properties. Nevertheless, the wide bang gap of pristine oxide reduces its electron transport ability and photocatalytic activity. Doping with halides and other elements has been proven an efficient defect engineering strategy in order to reduce the band gap and maximize the photocatalytic activity. In the present study, we apply Density Functional Theory to investigate the influence of fluorine and chlorine doping on the electronic properties of TiO2. Furthermore, we present a complete investigation of spin polarized density functional theory of the (001) surface doped with F and Cl in order to elaborate changes in the electronic structure and compare them with the bulk TiO2.


Author(s):  
Anil Kumar Singh ◽  
Sudhanshu Choudhary

Spin dependent quantum transport properties in twisted carbon nanotube and stretched carbon nanotube are calculated using density functional theory (DFT) and non-equilibrium green’s function (NEGF) formulation. Twisting and stretching have no effect on spin transport in CNTs at low bias voltages. However, at high bias voltages the effects are significant. Stretching restricts any spin-up current in antiparallel configuration (APC) which results in higher magneto resistance (MR). Twisting allows spin-up current almost equivalent to the pristine CNT case resulting in lower MR. High spin filtration is observed in PC and APC for pristine, stretched and twisted structures at all applied voltages. In APC, at low voltages spin filtration in stretched CNT is higher than in pristine and twisted ones with pristine giving higher spin filtration than twisted CNT.


2018 ◽  
Vol 32 (15) ◽  
pp. 1850186 ◽  
Author(s):  
Meng Zhao ◽  
Jian-Duo Lu ◽  
Shun-Jin Peng ◽  
Hong-Yu Liu

We theoretically investigate the electron transport properties in a nanostructure modulated by a ferromagnetic stripe (FM) and a Schottky metal stripe (SM) as well as a [Formula: see text]-doping with the help of transfer-matrix method. It is found that the position and the weight of the [Formula: see text]-doping, the width of the SM and the electrical potential, all play an important role in the electron transmission probability and the spin polarization. Therefore, we can control the electron transport properties through adjusting the SM and the [Formula: see text]-doping. These interesting phenomena may be very helpful for designing the spintronic devices.


RSC Advances ◽  
2014 ◽  
Vol 4 (104) ◽  
pp. 60376-60381 ◽  
Author(s):  
Tong Chen ◽  
Lingling Wang ◽  
Xiaofei Li ◽  
Kaiwu Luo ◽  
Liang Xu ◽  
...  

By using the nonequilibrium Green's function formalism combined with the density-functional theory, we present a theoretical study of the spin-dependent electron transport of a chromium porphyrin-based molecule device.


Sign in / Sign up

Export Citation Format

Share Document