Chiral oscillations in electronic transport through graphene nanoribbons induced by pseudospin filters

2020 ◽  
Vol 102 (20) ◽  
Author(s):  
Luis I. A. López ◽  
Michel Mendoza
Keyword(s):  
Electronic Transport ◽  
Graphene Nanoribbons

Effect of Chemical Doping on the Electronic Transport Properties of Tailoring Graphene Nanoribbons

2018 ◽  
Vol 35 (6) ◽  
pp. 067101
Author(s):  
Yang Liu ◽  
Cai-Juan Xia ◽  
Bo-Qun Zhang ◽  
Ting-Ting Zhang ◽  
Yan Cui ◽  
...  
Keyword(s):  
Transport Properties ◽  
Electronic Transport ◽  
Graphene Nanoribbons ◽  
Chemical Doping ◽  
Electronic Transport Properties

Effects of different tailoring graphene electrodes on the rectification and negative differential resistance of molecular devices

2018 ◽  
Vol 32 (29) ◽  
pp. 1850323
Author(s):  
Ting Ting Zhang ◽  
Cai Juan Xia ◽  
Bo Qun Zhang ◽  
Xiao Feng Lu ◽  
Yang Liu ◽  
...  
Keyword(s):  
Electronic Transport ◽  
Negative Differential Resistance ◽  
Density Functional ◽  
Graphene Nanoribbons ◽  
Differential Resistance ◽  
Voltage Characteristic ◽  
Molecular Devices ◽  
Current Voltage Characteristic ◽  
Functional Theory ◽  
Current Voltage

The electronic transport properties of oligo p-phenylenevinylene (OPV) molecule sandwiched with symmetrical or asymmetric tailoring graphene nanoribbons (GNRs) electrodes are investigated by nonequilibrium Green’s function in combination with density functional theory. The results show that different tailored GNRs electrodes can modulate the current–voltage characteristic of molecular devices. The rectifying behavior can be observed with respect to electrodes, and the maximum rectification ratio can reach to 14.2 in the asymmetric AC–ZZ GNRs and ZZ–AC–ZZ GNRs electrodes system. In addition, the obvious negative differential resistance can be observed in the symmetrical AC-ZZ GNRs system.

First-principles study of electronic transport properties of graphene nanoribbons with pentagon-heptagon (5-7) line defects

2015 ◽  
Vol 1727 ◽  
Author(s):  
Yasutaka Nishida ◽  
Takashi Yoshida ◽  
Fumihiko Aiga ◽  
Yuichi Yamazaki ◽  
Hisao Miyazaki ◽  
...  
Keyword(s):  
Transport Properties ◽  
Electronic Transport ◽  
First Principles ◽  
Density Functional ◽  
Graphene Nanoribbons ◽  
Edge State ◽  
Line Defect ◽  
Electronic Transport Properties ◽  
Current Voltage ◽  
Line Defects

ABSTRACTIn this study, we investigated the influence of line defects consisting of pentagon-heptagon (5-7) pairs on the electronic transport properties of zigzag-edged and armchair-edged graphene nanoribbons (GNRs). Using the first-principles density functional theory, we study their electronic properties. To investigate their current-voltage (I-V) characteristics at low bias voltage (∼ 1 meV), we use the nonequilibrium Green’s function method. As a result, we found that the conductance of the GNRs having a connected line defect between source and drain shows better performance than that of the ideal zigzag-edged GNRs (ZGNRs). A detailed investigation of the transmission spectra and the wave function around the Fermi level reveals that the line defects arranged along the transport direction work similar to an edge state of the ZGNRs and can be an additional conduction channel. Our results suggest that such a line defect can be effective for low-resistance GNR interconnects.

Electronic transport in graphene nanoribbons

2019 ◽  
Author(s):  
Christoph Tegenkamp ◽  
Johannes Aprojanz ◽  
Jens Baringhaus
Keyword(s):  
Electronic Transport ◽  
Graphene Nanoribbons

SPIN-POLARIZATION-DEPENDENT TRANSPORT IN GRAPHENE NANORIBBON WITH A VACANCY

2011 ◽  
Vol 10 (03) ◽  
pp. 533-538 ◽  
Author(s):  
CHUN-MEI LIU ◽  
NIAN-HUA LIU ◽  
ZHENG-FANG LIU ◽  
LI-PING AN
Keyword(s):  
Spin Polarization ◽  
Electronic Transport ◽  
First Principles ◽  
Density Functional ◽  
Graphene Nanoribbons ◽  
Electronic Band ◽  
Functional Theory ◽  
Electronic Band Gap ◽  
The Stability ◽  
Dependent Transport

By using the first-principles density functional theory combining with the nonequilibrium Green’s function techniques, we investigate the electronic structure and the spin-polarization-dependent electronic transport of zigzag graphene nanoribbons (ZGNR) with a defect of vacancy. The total energy of the graphene ribbons corresponding to different vacancy locations is calculated to analyze the stability of the structures. It is found that the existence of a vacancy causes a significant change in the electronic band gap. The electronic band and the transport become spin-polarization-dependent. The calculated I–V characteristic shows that the spin-polarization-dependent effect can be enhanced under a finite bias voltage.

scholarly journals Electronic transport in helium-ion-beam etched encapsulated graphene nanoribbons

Carbon ◽  
2017 ◽  
Vol 119 ◽  
pp. 419-425 ◽  
Author(s):  
Gaurav Nanda ◽  
Gregor Hlawacek ◽  
Srijit Goswami ◽  
Kenji Watanabe ◽  
Takashi Taniguchi ◽  
...  
Keyword(s):  
Electronic Transport ◽  
Graphene Nanoribbons ◽  
Ion Beam ◽  
Helium Ion

scholarly journals CO2 adsorption on Fe-doped graphene nanoribbons: First principles electronic transport calculations

AIP Advances ◽  
2016 ◽  
Vol 6 (12) ◽  
pp. 125102 ◽  
Author(s):  
G. R. Berdiyorov ◽  
H. Abdullah ◽  
M. Al Ezzi ◽  
G. V. Rakhmatullaeva ◽  
H. Bahlouli ◽  
...  
Keyword(s):  
Electronic Transport ◽  
First Principles ◽  
Co2 Adsorption ◽  
Graphene Nanoribbons ◽  
Doped Graphene
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