First Principles Study of Transverse Electric Fields on Carbon Nanotubes

2010 ◽  
Author(s):  
L. B. da Silva ◽  
Solange B. Fagan ◽  
Marília Caldas ◽  
Nelson Studart
Keyword(s):  
Carbon Nanotubes ◽  
Electric Fields ◽  
First Principles ◽  
Transverse Electric ◽  
First Principles Study ◽  
Transverse Electric Fields

Half-metallicity modulation of zigzag BC2N nanoribbons by transverse electric fields: A first principles study

2019 ◽  
Vol 383 (33) ◽  
pp. 125984 ◽  
Author(s):  
Xiaoling Lü ◽  
Jimin Huang ◽  
Shuhui Lv ◽  
Wenyue Dong ◽  
Yanwei Li ◽  
...  
Keyword(s):  
Electric Fields ◽  
First Principles ◽  
Transverse Electric ◽  
Half Metallicity ◽  
First Principles Study ◽  
Transverse Electric Fields

scholarly journals Spin current distribution in antiferromagnetic zigzag graphene nanoribbons under transverse electric fields

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jie Zhang ◽  
Eric P. Fahrenthold
Keyword(s):  
Electric Fields ◽  
Transverse Electric ◽  
Graphene Nanoribbons ◽  
Spin Current ◽  
Differential Resistance ◽  
Current Control ◽  
Field Analysis ◽  
Current Transmission ◽  
Transverse Electric Fields ◽  
Zigzag Graphene Nanoribbons

AbstractThe spin current transmission properties of narrow zigzag graphene nanoribbons (zGNRs) have been the focus of much computational research, investigating the potential application of zGNRs in spintronic devices. Doping, fuctionalization, edge modification, and external electric fields have been studied as methods for spin current control, and the performance of zGNRs initialized in both ferromagnetic and antiferromagnetic spin states has been modeled. Recent work has shown that precise fabrication of narrow zGNRs is possible, and has addressed long debated questions on their magnetic order and stability. This work has revived interest in the application of antiferromagnetic zGNR configurations in spintronics. A general ab initio analysis of narrow antiferromagnetic zGNR performance under a combination of bias voltage and transverse electric field loading shows that their current transmission characteristics differ sharply from those of their ferromagnetic counterparts. At relatively modest field strengths, both majority and minority spin currents react strongly to the applied field. Analysis of band gaps and current transmission pathways explains the presence of negative differential resistance effects and the development of spatially periodic electron transport structures in these nanoribbons.

scholarly journals First-principles study of electronic structure of deformed carbon nanotubes

2007 ◽  
Vol 8 (3) ◽  
pp. 200-203 ◽  
Author(s):  
Kazuchika Iwami ◽  
Hidekazu Goto ◽  
Kikuji Hirose ◽  
Tomoya Ono
Keyword(s):  
Carbon Nanotubes ◽  
Electronic Structure ◽  
First Principles ◽  
First Principles Study

Silicon adsorption in defective carbon nanotubes: a first principles study

2006 ◽  
Vol 17 (16) ◽  
pp. 4088-4091 ◽  
Author(s):  
L B da Silva ◽  
Solange B Fagan ◽  
R Mota ◽  
A Fazzio
Keyword(s):  
Carbon Nanotubes ◽  
First Principles ◽  
First Principles Study
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