Zobrazeno 1 - 10
of 157
pro vyhledávání: '"de Assis, Thiago A."'
We introduce a multifractal optimal detrended fluctuation analysis to study the scaling properties of the one-dimensional Wolf-Villain (WV) model for surface growth. This model produces mounded surface morphologies for long time scales (up to $10^9$
Externí odkaz:
http://arxiv.org/abs/2405.07133
When solving the Laplace equation numerically via computer simulation, in order to determine the field values at the surface of a shape model that represents a field emitter, it is necessary to define a simulation box and, within this, a simulation d
Externí odkaz:
http://arxiv.org/abs/2302.03733
Publikováno v:
J. Phys.: Condens. Matter 34, 493001 (2022). (Open Access)
This review of quantitative field emitter electrostatics, covering analytical, numerical and fitted-formula approaches, is thought the first of its kind. The review relates chiefly to situations where emitters operate in an electronically ideal manne
Externí odkaz:
http://arxiv.org/abs/2206.09296
Autor:
Filippov, Sergey V., Dall’Agnol, Fernando F., Popov, Eugeni O., Kolosko, Anatoly G., de Assis, Thiago A.
Publikováno v:
In Ultramicroscopy December 2024 267
Publikováno v:
Physical Review E 102, 012805 (2020)
We study the statistics of the number of executed hops of adatoms at the surface of films grown with the Clarke-Vvedensky (CV) model in simple cubic lattices. The distributions of this number, $N$, are determined in films with average thicknesses clo
Externí odkaz:
http://arxiv.org/abs/2007.12554
Autor:
de Castro, Caio P., de Assis, Thiago A., Rivelino, Roberto, Mota, Fernando de B., de Castilho, Caio M. C., Forbes, Richard G.
In many field electron emission experiments on single-walled carbon nanotubes (SWCNTs), the SWCNT stands on one of two well-separated parallel plane plates, with a macroscopic field FM applied between them. For any given location "L" on the SWCNT sur
Externí odkaz:
http://arxiv.org/abs/2006.11344
Akademický článek
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Autor:
de Castro, Caio P., de Assis, Thiago A., Rivelino, Roberto, Mota, Fernando de B., de Castilho, Caio M. C., Forbes, Richard G.
Measurements of current-voltage characteristics from ideal carbon nanotube (CNT) field electron emitters of small apex radius have shown that these emitters can exhibit a linear Fowler-Nordheim (FN) plot [e.g., Dean and Chalamala, Appl. Phys. Lett.,
Externí odkaz:
http://arxiv.org/abs/1907.07539
Autor:
Allen-Perkins, Alfonso, Serrano, Alfredo Blanco, de Assis, Thiago Albuquerque, Pastor, Juan Manuel, Andrade, Roberto F. S.
A Markov chain (MC) formalism is used to investigate the mean-square displacement (MSD) of a random walker on Newman-Watts (NW) networks. It leads to a precise analysis of the conditions for the emergence of anomalous sub- or super-diffusive regimes
Externí odkaz:
http://arxiv.org/abs/1901.11346
Local roughness exponent in the nonlinear molecular-beam-epitaxy universality class in one-dimension
Publikováno v:
Phys. Rev. E 99, 022801 (2019)
We report local roughness exponents, $\alpha_{\text{loc}}$, for three interface growth models in one dimension which are believed to belong the non-linear molecular-beam-epitaxy (nMBE) universality class represented by the Villain-Lais-Das Sarma (VLD
Externí odkaz:
http://arxiv.org/abs/1812.03114