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## Nonlinear generation of vorticity by surface waves

Physical Review Letters. 2016. Vol. 116. No. 5. P. 054501-1-054501-5.

We demonstrate that waves excited on a fluid surface produce local surface rotation owing to hydrodynamic nonlinearity. We examine theoretically the effect and obtain an explicit formula for the vertical vorticity in terms of the surface elevation. Our theoretical predictions are confirmed by measurements of surface motion in a cell with water where surface waves are excited by vertical and harmonic shaking the cell. The experimental data are in good agreement with the theoretical predictions. We discuss physical consequences of the effect.

Bondarenko G.G., Bonk O. G., Kristya V. I., Vacuum 2007 Vol. 81 No. 6 P. 771-773

Diffusion transport of material sputtered from the surface of the powered electrode in the asymmetric alternating current discharge is theoretically studied. It is shown that amplitudes of the non-stationary component of the sputtered atom (SA) flow densities at the electrodes depend on the discharge frequency and two dimensionless parameters, which are functions of the SA ...

Added: November 21, 2013

Pavlov D., Galigerov V., Kolotinskii D. et al., International Journal of High Performance Computing Applications 2024 Vol. 38 No. 1 P. 34-49

Fluid dynamics is a ubiquitous problem that arises in different branches of science and industry. It is usually tackled by numerically solving differential equations on a finite grid. Molecular dynamics was not a feasible tool to approach fluid dynamics until very recently due to its disproportional computational complexity. In this paper we propose a new ...

Added: July 18, 2023

Pavlova T., Shevlyuga V. M., Andryushechkin B. V. et al., Applied Surface Science 2022 Vol. 591 Article 153080

Halogen monolayer on a silicon surface is attracting active attention for applications in electronic device fabrication with individual impurities. To create a halogen mask for the impurities incorporation, it is desirable to be able to remove a single halogen atom from the surface. We report the desorption of individual halogen atoms from the Si(100)-2 × 1-Cl and -Br surfaces in ...

Added: June 22, 2022

СПб. : ФГБУ "ПИЯФ" НИЦ "Курчатовский институт", 2014

This edition presents abstracts of the reports of the Meeting and Youth Conference on Neutron Scattering and Synchrotron Radiationin Condensed Matte (NSSR-CM-2014)r ...

Added: March 11, 2015

Andreev A. F., Melnikovsky L.A., Journal of Experimental and Theoretical Physics 2017 Vol. 124 No. 6 P. 920-923

The conditions for applicability of the mean field theory for describing the thermodynamics of the surface of 4He crystals are investigated based on analysis of experimental data. It is found that although the faceting phase transition itself is a Berezinsky–Kosterlitz–Thouless phase transition, the thermodynamic potential outside a narrow neighborhood of the transition temperature can be ...

Added: February 23, 2018

B.V. Andryushechkin, T.V. Pavlova, K.N. Eltsov, Surface Science Reports 2018 Vol. 73 No. 3 P. 83-115

This paper presents a review of the experimental and theoretical investigations of halogeninteraction with metal surfaces. The emphasis was placed on the recent measurements performed with a scanning tunneling microscope in combination with density functional theory calculations. The surface structures formed on metal surface after halogen interaction are classified into three groups: chemisorbed monolayer, surface halide, bulk-like halide. Formation ...

Added: January 10, 2019

A. V. Slunyaev, Shrira V. I., Physics of Fluids 2023 Vol. 35 No. 12 Article 126606

Rogue waves are known to be much more common on jet currents. A possible explanation was put forward in Shrira and Slunyaev
[“Nonlinear dynamics of trapped waves on jet currents and rogue waves,” Phys. Rev. E 89, 041002(R) (2014)] for the waves trapped on
current robust long-lived envelope solitary waves localized in both horizontal directions become possible, ...

Added: December 20, 2023

Guskova M., Burovskiy E., Shchur V. et al., Lobachevskii Journal of Mathematics 2022 Vol. 43 No. 2 P. 381-385

A particle moving in the Poiseuille flow in a channel experiences the influence of
the velocity gradient and the channel walls. Several effects happen with the particle – velocity
retardation, rotation, and migration transversal to the main flow direction. We simulate dynamics
of a hard particle in a narrow two-dimensional channel and estimate the variation with the channel
width ...

Added: May 25, 2022

T.V. Pavlova, G.M. Zhidomirov, K.N. Eltsov, The Journal of Physical Chemistry C (США) 2018 Vol. 122 No. 3 P. 1741-1745

This paper presents a density functional theory study for phosphine adsorption on a Si(001)-2 × 1 surface covered by a chlorine monolayer, including adsorption on local defects, i.e., mono- and bivacancies in the adsorbate layer (Cl, Cl2), and combined vacancies with removed silicon atoms (SiCl, SiCl2). Activation barriers were found for the adsorbing PH3 to dissociate ...

Added: January 10, 2019

Никонов Э. Г., Назмитдинов Р. Г., Глуховцев П. И., Поверхность. Рентгеновские, синхротронные и нейтронные исследования 2023 № 2 С. 71-76

The problem of finding equilibrium configurations of similarly charged particles (ions) induced by
external electrostatic fields in planar systems is of great interest for fundamental and applied research. In this
paper, the results of numerical analysis of equilibrium configurations of negatively charged particles (electrons)
confined in a circular region by an infinite external potential at its boundary are ...

Added: July 19, 2023

Pavlova T., Shevlyuga V.M., Andryushechkin B. V. et al., Physical Review B: Condensed Matter and Materials Physics 2020 Vol. 101 No. 23 P. 235410-235410

We insert and manipulate a single chlorine atom in chlorine monolayer on a Si(100)-2 × 1 surface using a scanning tunneling microscope. Two objects were created—a Cl atom in a groove between two dimer rows, and bridge-bonded Cl on a silicon dimer. Changing the voltage polarity leads to conversion of the objects into each other. ...

Added: November 16, 2020

Parfenyev V., Vergeles S.S., Lebedev V., Physical Review E - Statistical, Nonlinear, and Soft Matter Physics 2016 Vol. 94 No. 5 P. 052801-1-052801-5

Recently a theoretical scheme explaining the vorticity generation by surface waves in liquids was developed [Phys. Rev. Lett.116,054501(2016)]. Here we study how a thin (monomolecular) film presented on the surface of liquid affects the generated vorticity. We demonstrate that the vorticity becomes parametrically larger than for the case of liquid with a free surface, and ...

Added: March 13, 2017

Slunyaev A., Kokorina A., Physics of Fluids 2023 Vol. 35 No. 11 Article 117109

By means of the direct numerical simulation of directional waves on the surface of deep water, it is shown that extreme waves can exhibit
such asymmetry that the occurrence of deeper troughs is several times more likely on the wave rear slopes. This effect becomes most
pronounced in the case of steep short-crested waves. It is not ...

Added: December 20, 2023

Pavlova T., Physical Chemistry Chemical Physics 2020 Vol. 22 P. 21851-21857

Hydrogen can be inserted into Si(100)-2 × 1-H during surface preparation or during the hydrogen desorption lithography used to create atomic-scale devices. Here, a hydrogen atom inserted into a hydrogen monolayer on the Si(100)-2 × 1 surface has been studied using density functional theory. Hydrogen-induced defects were considered in their neutral, negative, and positive charge ...

Added: November 2, 2020

Ruderman M.., Petrukhin N., Astronomy and Astrophysics 2017 Vol. 600 No. A122 P. 1-11

The ability of phase mixing to provide eﬃcient damping of Alfvén waves even in weakly dissipative plasmas made it a popular mechanismforexplainingthesolarcoronalheating.Initiallyitwasstudiedintheequilibriumconﬁgurationswiththestraightmagnetic ﬁeldlinesandtheAlfvénspeedonlyvaryinginthedirectionperpendiculartothemagneticﬁeld.LatertheanalysisoftheAlfvénwave phase mixing was extended in various directions. In particular it was studied in two-dimensional planar magnetic plasma equilibria. Analytical investigation was carried out under the assumption that the wavelength is much smaller ...

Added: May 10, 2017

Guskova M., Shchur V., Shchur L., Lobachevskii Journal of Mathematics 2020 Vol. 41 No. 6 P. 992-995

We simulate the oscillation of the viscous drop in the viscous liquid. We combine methods of chromodynamics model and Shan-Chen pseudo-potential for the immiscible fluids. We measure the frequency of the first nontrivial eigenmode using the initial ellipsoid form of the drop. Drop oscillates about the equilibrium spherical form of radius $R$. Computed frequency as ...

Added: June 2, 2020

Nikita S. Komarov, Tatiana V. Pavlova, Boris V. Andryushechkin, Journal of Physical Chemistry C 2019 Vol. 123 No. 45 P. 27659-27665

Scanning tunneling microscopy (STM), lowenergy electron diffraction (LEED), Auger electron spectroscopy (AES) and density functional theory (DFT) calculations have been used to investigate the I2 adsorption on the Ni(110) surface. Dissociative adsorption takes place rapidly to form a c(2×2) layer at iodine coverage of 0.5 ML. DFT calculations show that hollow sites are energetically preferable ...

Added: October 25, 2019

T.V. Pavlova, Eltsov K. N., Journal of Physics: Condensed Matter 2021 Vol. 33 No. 38 Article 384001

Despite the interest in a chlorine monolayer on Si(100) as an alternative to hydrogen resist for atomic-precision doping, little is known about its interaction with dopant-containing molecules. We used the density functional theory to evaluate whether a chlorine monolayer on Si(100) is suitable as a resist for PH3, PCl3, and BCl3 molecules. We calculated reaction ...

Added: October 9, 2021

T.V. Pavlova, Шевлюга В. М., B.V. Andryushechkin et al., Applied Surface Science 2020 Vol. 509 P. 145235

We report the realization of STM-based lithography with silicon layers removal on the chlorinated Si(100)-2x1 surface at 77K. In contrast to other STM lithography studies, we were able to remove locally both chlorine and silicon atoms. Most of the etched pits have a lateral size of 10-20A and a depth of 1-5A. In the pits in ...

Added: May 18, 2020

Chernik V., Bondarenko G., Gaidar A. et al., Известия высших учебных заведений. Физика 2008 Т. 51 № 11/2 С. 6-9

Представлены результаты измерения коэффициентов химического распыления углеситалла УСБ-15, пироуглерода ПГИ, пирографита УПВ-1, экспонированных в ускоренных частично диссоциированных потоках кислородной плазмы с энергией ионов 90 эВ. Для исследованных нелегированных материалов УПВ-1 и ПГИ коэффициент химического распыления не зависит от степени совершенства кристаллической решетки и составляет 0,94-0,96 атомов/атом. При легировании бором коэффициент распыления углеситалла УСБ-15 с 8% ...

Added: January 4, 2013

Parfenyev V., Belan S., Lebedev V., Journal of Fluid Mechanics 2019 Vol. 862 P. 1084-1104

Stochastic roughness is a widespread feature of natural surfaces and is an inherent byproduct of most fabrication techniques. In view of the rapid development of microfluidics, the important question is how this inevitable problem affects the low-Reynolds-number flows that are common for micro-devices. Moreover, one could potentially turn the flaw into a virtue and control ...

Added: January 22, 2019

Lukin V. V., Malanchev K. L., Shakura N. I. et al., Monthly Notices of the Royal Astronomical Society 2017 Vol. 467 No. 3 P. 2934-2942

We present the results of 3D-hydrodynamical simulations of accretion flow in the eclipsing dwarf nova V1239 Her in quiescence. The model includes the optical star filling its Roche lobe, a gas stream emanating from the inner Lagrangian point of the binary system, and the accretion disc structure. A cold hydrogen gas stream is initially emitted ...

Added: October 25, 2017

Pavlova T., Шевлюга В. М., Journal of Chemical Physics 2024 Vol. 160 No. 5 P. 054701-054701

For the most precise incorporation of single impurities in silicon, which is utilized to create quantum devices, a monolayer of adatoms on the Si(100) surface and a dopant-containing molecule are used. Here we studied the interaction of a phosphorus tribromide with a chlorine monolayer with mono- and bivacancies in a scanning tunneling microscope (STM) at ...

Added: July 2, 2024

Slunyaev A., Известия РАН. Физика атмосферы и океана 2023 Т. 59 С. 793-814

По результатам прямого численного моделирования нерегулярных нелинейных волн на поверхности глубокой воды в рамках трехмерных потенциальных уравнений гидродинамики определены
вклады различных волновых компонент (второй, третьей и разностной гармоник) в формирование
распределений вероятностей высот экстремальных волн, а также амплитуд гребней и ложбин. Проанализированы результаты моделирования с учетом 4- и 5-волновых нелинейных взаимодействий.
Разные нелинейные гармоники участвуют в формировании распределений ...

Added: December 20, 2023