Influence of a weak external electric field on the bremsstrahlung during collisions between the electrons falling on potential barrier of this field and a charged particle

2005 ◽  
Author(s):  
V. I. Krylov ◽  
V V. Pivkin
Keyword(s):  
Charged Particle ◽  
Electric Field ◽  
External Electric Field ◽  
Potential Barrier

scholarly journals Trapping and transport of charges in DNA by mobile discrete breathers

2018 ◽  
Vol 13 (1) ◽  
pp. 1-12 ◽  
Author(s):  
A.P. Chetverikov ◽  
K.S. Sergeev ◽  
V.D. Lakhno
Keyword(s):  
Numerical Simulation ◽  
Wave Function ◽  
Charged Particle ◽  
Electric Field ◽  
External Electric Field ◽  
Base Pair ◽  
Quasi Particle ◽  
Dna Molecule ◽  
Discrete Breathers

Numerical simulation of trapping and transport of a charged particle (electron or hole) by mobile discrete breathes (mobile DB, MDB) in DNA molecule has been provided. Mobile DBs have been excited by disturbance of displacements or velocities of adjacent nucleotide pairs dislocated near one of fixed ends of the molecule. It is shown that effective forming of a stable quasi-particle “MDB + electron” occurs when a few of nucleotide pairs at the end of DNA are excited. Breathes may be excited by disturbances of displacements and velocities directed both to axis and from axis of the molecule. A wave function of an electron must be located initially in a region of disturbance of the molecule. It has been found that a metastable quasi-particle may be transported at a distance up to 200 of a rise per base pair. The mechanism of transport of a charged particle presented is not in need of an external electric field and may be considered as an alternative one to the polaronic mechanism.

Enhanced field-emission properties of buckled α-borophene by means of Li decoration: a first-principles investigation

2018 ◽  
Vol 20 (22) ◽  
pp. 15139-15148 ◽  
Author(s):  
Bing Zheng ◽  
Liang Qiao ◽  
Hai-tao Yu ◽  
Qi-yue Wang ◽  
Ying Xie ◽  
...  
Keyword(s):  
Electric Field ◽  
External Electric Field ◽  
Field Emission ◽  
Potential Barrier ◽  
Electron Emission ◽  
First Principles ◽  
Emission Current ◽  
Emission Properties ◽  
Field Emission Properties ◽  
Field Emission Current

Li decoration and external electric field decrease the potential barrier to electron emission and increase field emission current of buckled α-borophene.

Time-resolved X-ray reciprocal space mapping of the crystal under external electric field

2018 ◽  
Vol 189 (02) ◽  
pp. 187-194 ◽  
Author(s):  
Nikita V. Marchenkov ◽  
Anton G. Kulikov ◽  
Ivan I. Atknin ◽  
Arsen A. Petrenko ◽  
Alexander E. Blagov ◽  
...  
Keyword(s):  
Electric Field ◽  
External Electric Field ◽  
Space Mapping ◽  
Reciprocal Space ◽  
Reciprocal Space Mapping ◽  
Time Resolved ◽  
X Ray
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