Torsional States and Tunneling Probability in HOSOH, DOSOD, and DOSOH Molecules Analyzed at the CBS Limit

2020 ◽  
Vol 124 (42) ◽  
pp. 8733-8743
Author(s):  
G. A. Pitsevich ◽  
A. E. Malevich ◽  
D. G. Kisuryna ◽  
A. A. Ostyakov ◽  
U. U. Sapeshka
Keyword(s):  
Tunneling Probability

Field-assisted ionization theory for microscopists

1994 ◽  
Vol 52 ◽  
pp. 820-821
Author(s):  
Patrick P. Camus
Keyword(s):  
Electric Field ◽  
Electron Tunneling ◽  
Ionization Probability ◽  
Critical Distance ◽  
Tunneling Probability ◽  
Field Ionization ◽  
Radius Of Curvature ◽  
Field Evaporation ◽  
A Value ◽  
Ion Emission

The theory of field ion emission is the study of electron tunneling probability enhanced by the application of a high electric field. At subnanometer distances and kilovolt potentials, the probability of tunneling of electrons increases markedly. Field ionization of gas atoms produce atomic resolution images of the surface of the specimen, while field evaporation of surface atoms sections the specimen. Details of emission theory may be found in monographs.Field ionization (FI) is the phenomena whereby an electric field assists in the ionization of gas atoms via tunneling. The tunneling probability is a maximum at a critical distance above the surface,xc, Fig. 1. Energy is required to ionize the gas atom at xc, I, but at a value reduced by the appliedelectric field, xcFe, while energy is recovered by placing the electron in the specimen, φ. The highest ionization probability occurs for those regions on the specimen that have the highest local electric field. Those atoms which protrude from the average surfacehave the smallest radius of curvature, the highest field and therefore produce the highest ionizationprobability and brightest spots on the imaging screen, Fig. 2. This technique is called field ion microscopy (FIM).

scholarly journals Tunneling Probability Increases with Distance in Junctions Comprising Self-Assembled Monolayers of Oligothiophenes

2018 ◽  
Vol 140 (44) ◽  
pp. 15048-15055 ◽  
Author(s):  
Yanxi Zhang ◽  
Saurabh Soni ◽  
Theodorus L. Krijger ◽  
Pavlo Gordiichuk ◽  
Xinkai Qiu ◽  
...  
Keyword(s):  
Tunneling Probability ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled

Modeling of nitrogen profile effects on direct tunneling probability in ultrathin nitrided oxides

2008 ◽  
Vol 92 (2) ◽  
pp. 022112 ◽  
Author(s):  
Po-Tsun Liu ◽  
Chen-Shuo Huang ◽  
D. Y. Lee ◽  
P. S. Lim ◽  
S. W. Lin ◽  
...  
Keyword(s):  
Tunneling Probability ◽  
Direct Tunneling

Extended Quantum Model for Porous Silicon Formation

1994 ◽  
Vol 358 ◽  
Author(s):  
H. Münder ◽  
St. Frohnhoff ◽  
M.G. Berger ◽  
M. Marso ◽  
M. Thönissen ◽  
...  
Keyword(s):  
Porous Silicon ◽  
Doping Level ◽  
Tunneling Probability ◽  
Quantum Mechanical ◽  
Quantum Model ◽  
Electrochemical Dissolution ◽  
Quantum Mechanical Calculations ◽  
Model Calculations ◽  
Etching Parameters ◽  
Substrate Doping

ABSTRACTThe formation of porous silicon (PS) by electrochemical dissolution of bulk Si is described by a new model involving quantum mechanical calculations of the tunneling probability of holes through small crystallites (< 60 Å) into the electrolyte. This tunneling probability shows oscillations as a function of crystallite size. The presented model calculations are in agreement to the microstructure of p-PS — deduced from Raman measurements — as a function of etching parameters and substrate doping level.

On a barrier anti-Zeno effect in a special model allowing for an analytical solution

2017 ◽  
Vol 31 (11) ◽  
pp. 1750069 ◽  
Author(s):  
V. A. Namiot ◽  
L. Yu. Shchurova
Keyword(s):  
Analytical Solution ◽  
Analytic Solution ◽  
Cold Fusion ◽  
Tunneling Probability ◽  
Particle Flow ◽  
Special Shape ◽  
Barrier Permeability ◽  
Special Model ◽  
Zeno Effect ◽  
Paradoxical Results

We consider a situation when observations can increase particle flow across a barrier by many orders of magnitude compared with the tunneling probability (a barrier anti-Zeno effect). It may be of interest for explaining the paradoxical results of experiments on “cold fusion” that has earlier been observed by other authors for various systems. We examine the anti-Zeno effect in a model of a barrier of a special shape, which has similarities with the form of barriers to nuclear fusion in a solid, and moreover has an analytic solution. We have deducted formulas that demonstrate the conditions of increasing the barrier permeability.

Evidence of electric field-tunable tunneling probability in graphene and metal contact

Nanoscale ◽  
2017 ◽  
Vol 9 (27) ◽  
pp. 9520-9528 ◽  
Author(s):  
Songang Peng ◽  
Zhi Jin ◽  
Dayong Zhang ◽  
Jingyuan Shi ◽  
Yanhui Zhang ◽  
...  
Keyword(s):  
Electric Field ◽  
Fermi Level ◽  
Tunneling Probability ◽  
Metal Contact

The tunneling probability in metal/graphene contact is not constant, but highly dependent on the Fermi level of graphene under the metal.

scholarly journals Quantum Gravity Correction to Hawking Radiation of the 2+1-Dimensional Wormhole

2020 ◽  
Vol 2020 ◽  
pp. 1-10 ◽  
Author(s):  
Ganim Gecim ◽  
Yusuf Sucu
Keyword(s):  
Gordon Equation ◽  
Vector Boson ◽  
Generalized Uncertainty Principle ◽  
Tunneling Probability ◽  
Hawking Temperature ◽  
Positive Temperature ◽  
Klein Gordon ◽  
Modified Dirac Equation ◽  
Trapping Horizon ◽  
Klein Gordon Equation

We carry out the Hawking temperature of a 2+1-dimensional circularly symmetric traversable wormhole in the framework of the generalized uncertainty principle (GUP). Firstly, we introduce the modified Klein-Gordon equation of the spin-0 particle, the modified Dirac equation of the spin-1/2 particle, and the modified vector boson equation of the spin-1 particle in the wormhole background, respectively. Given these equations under the Hamilton-Jacobi approach, we analyze the GUP effect on the tunneling probability of these particles near the trapping horizon and, subsequently, on the Hawking temperature of the wormhole. Furthermore, we have found that the modified Hawking temperature of the wormhole is determined by both wormhole’s and tunneling particle’s properties and indicated that the wormhole has a positive temperature similar to that of a physical system. This case indicates that the wormhole may be supported by ordinary (nonexotic) matter. In addition, we calculate the Unruh-Verlinde temperature of the wormhole by using Kodama vectors instead of time-like Killing vectors and observe that it equals to the standard Hawking temperature of the wormhole.

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