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Journal articles on the topic 'Magnetické vortexy'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 February 2022

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1

Mintairov, Alexander, Dmitrii Lebedev, Alexei Vlasov, Andrey Bogdanov, Shahab Ramezanpour, and Steven Blundell. "Fractional Charge States in the Magneto-Photoluminescence Spectra of Single-Electron InP/GaInP2 Quantum Dots." Nanomaterials 11, no. 2 (2021): 493. http://dx.doi.org/10.3390/nano11020493.

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We used photoluminescence spectra of single electron quasi-two-dimensional InP/GaInP2 islands having Wigner-Seitz radius ~4 to measure the magnetic-field dispersion of the lowest s, p, and d single-particle states in the range 0–10 T. The measured dispersion revealed up to a nine-fold reduction of the cyclotron frequency, indicating the formation of nano-superconducting anyon or magneto-electron (em) states, in which the corresponding number of magnetic-flux-quanta vortexes and fractional charge were self-generated. We observed a linear increase in the number of vortexes versus the island size

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2

Pylypovskyi, O. V., D. D. Sheka, V. P. Kravchuk, Yu B. Gaididei, and F. G. Mertens. "Mechanism of Fast Axially Symmetric Reversal of Magnetic Vortex Core." Ukrainian Journal of Physics 58, no. 6 (2013): 596–603. http://dx.doi.org/10.15407/ujpe58.06.0596.

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3

Xie, Hui, Mengmeng Sun, Xinjian Fan, et al. "Reconfigurable magnetic microrobot swarm: Multimode transformation, locomotion, and manipulation." Science Robotics 4, no. 28 (2019): eaav8006. http://dx.doi.org/10.1126/scirobotics.aav8006.

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Swimming microrobots that are energized by external magnetic fields exhibit a variety of intriguing collective behaviors, ranging from dynamic self-organization to coherent motion; however, achieving multiple, desired collective modes within one colloidal system to emulate high environmental adaptability and enhanced tasking capabilities of natural swarms is challenging. Here, we present a strategy that uses alternating magnetic fields to program hematite colloidal particles into liquid, chain, vortex, and ribbon-like microrobotic swarms and enables fast and reversible transformations between

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4

Watson, J. L. S., and Z. Li. "Vortex magnetic separation." Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 211, no. 1 (1997): 31–42. http://dx.doi.org/10.1243/0954408971529520.

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Vortex magnetic separation (VMS) is a new technique (1-3) which can not only greatly increase selectivity of high gradient magnetic separation but can also provide a much higher material throughput because high slurry velocity is used. This technique will have a wide range of applications in fields as diverse as mineral processing, biochemical engineering, sewage and wastewater treatment and industrial effluent treatment. At present in high gradient magnetic separation (HGMS) low Reynolds numbers (with respect to the wire diameter) are usually used and the magnetic product is captured on the u

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5

Antos, Roman, YoshiChika Otani, and Junya Shibata. "Magnetic Vortex Dynamics." Journal of the Physical Society of Japan 77, no. 3 (2008): 031004. http://dx.doi.org/10.1143/jpsj.77.031004.

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6

Garcia, F., J. P. Sinnecker, E. R. P. Novais, and A. P. Guimarães. "Magnetic vortex echoes." Journal of Applied Physics 112, no. 11 (2012): 113911. http://dx.doi.org/10.1063/1.4768446.

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7

Hrkac, Gino, Paul S. Keatley, Matthew T. Bryan, and Keith Butler. "Magnetic vortex oscillators." Journal of Physics D: Applied Physics 48, no. 45 (2015): 453001. http://dx.doi.org/10.1088/0022-3727/48/45/453001.

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8

Guervilly, Céline, David W. Hughes, and Chris A. Jones. "Large-scale-vortex dynamos in planar rotating convection." Journal of Fluid Mechanics 815 (February 20, 2017): 333–60. http://dx.doi.org/10.1017/jfm.2017.56.

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Several recent studies have demonstrated how large-scale vortices may arise spontaneously in rotating planar convection. Here, we examine the dynamo properties of such flows in rotating Boussinesq convection. For moderate values of the magnetic Reynolds number ($100\lesssim Rm\lesssim 550$, with $Rm$ based on the box depth and the convective velocity), a large-scale (i.e. system-size) magnetic field is generated. The amplitude of the magnetic energy oscillates in time, nearly out of phase with the oscillating amplitude of the large-scale vortex. The large-scale vortex is disrupted once the mag

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9

Guslienko, K. Yu. "Magnetic Vortex State Stability, Reversal and Dynamics in Restricted Geometries." Journal of Nanoscience and Nanotechnology 8, no. 6 (2008): 2745–60. http://dx.doi.org/10.1166/jnn.2008.18305.

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Magnetic vortices are typically the ground states in geometrically confined ferromagnets with small magnetocrystalline anisotropy. In this article I review static and dynamic properties of the magnetic vortex state in small particles with nanoscale thickness and sub-micron and micron lateral sizes (magnetic dots). Magnetic dots made of soft magnetic material shaped as flat circular and elliptic cylinders are considered. Such mesoscopic dots undergo magnetization reversal through successive nucleation, displacement and annihilation of magnetic vortices. The reversal process depends on the stabi

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10

REED, D. S., N. C. YEH, W. JIANG, U. KRIPLANI, M. KONCZYKOWSKI, and F. HOLTZBERG. "ANISOTROPIC VORTEX DYNAMICS AND PHASE DIAGRAM OF YBa2Cu3O7 SINGLE CRYSTALS WITH CANTED COLUMNAR DEFECTS." International Journal of Modern Physics B 10, no. 22 (1996): 2723–43. http://dx.doi.org/10.1142/s0217979296001215.

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The anisotropic vortex dynamics and phase diagram are determined for a YBa 2 Cu 3 O 7 single crystal with columnar defects oriented at ±7.5° relative to the crystalline c-axis. A second-order splayed-glass to vortex-liquid transition is manifested for magnetic fields nearly parallel to the columns via the critical scaling of vortex AC and DC transport properties. In contrast, for magnetic fields aligned close to the ab-plane, an XY-like vortex-glass transition prevails. For magnetic fields at intermediate angles, there is no evidence of any vortex phase transition, and the vortex dynamics is d

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11

SHANG, XINLE, PENGMING ZHANG, and WEI ZUO. "THE TOPOLOGICAL STRUCTURE OF SINGLE VORTEX IN THE FF STATE." Modern Physics Letters B 25, no. 26 (2011): 2041–51. http://dx.doi.org/10.1142/s0217984911027261.

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In this paper, we study the coexistence of the vortex and the FF state by using the generalized Ginzburg–Landau (GL) functional with the applied magnetic field, and obtain the numeric solutions. Furthermore, we investigate the topological structure of the vortex and find that the property of vortices relies heavily on the modulation q along z-axis. There is no topological vortex when q < qp, and the value [Formula: see text] is more favorable for the topological vortex. Moreover the magnetic field at the core of the vortex is obtained for the topological vortex.

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12

Gorkavenko, Volodymyr M., Iryna V. Ivanchenko, and Yurii A. Sitenko. "Induced vacuum current and magnetic field in the background of a vortex." International Journal of Modern Physics A 31, no. 06 (2016): 1650017. http://dx.doi.org/10.1142/s0217751x16500172.

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A topological defect in the form of the Abrikosov–Nielsen–Olesen vortex is considered as a gauge-flux-carrying tube that is impenetrable for quantum matter. Charged scalar matter field is quantized in the vortex background with the perfectly reflecting (Dirichlet) boundary condition imposed at the side surface of the vortex. We show that a current circulating around the vortex and a magnetic field directed along the vortex are induced in the vacuum, if the Compton wavelength of the matter field exceeds considerably the transverse size of the vortex. The vacuum current and magnetic field are pe

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13

Adhikari, Prabal, and Jaehong Choi. "Magnetic vortices in the Abelian Higgs model with derivative interactions." International Journal of Modern Physics A 33, no. 36 (2018): 1850215. http://dx.doi.org/10.1142/s0217751x18502159.

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We study the properties of a single magnetic vortex and magnetic vortex lattices in a generalization of the Abelian Higgs model containing the simplest derivative interaction that preserves the [Formula: see text] gauge symmetry of the original model. The paper is motivated by the study of finite isospin chiral perturbation theory in a uniform, external magnetic field: since pions are Goldstone bosons of QCD (due to chiral symmetry breaking by the QCD vacuum), they interact through momentum-dependent terms. We find the asymptotic properties of single vortex solutions and compare them to the we

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14

Stebliy, Maxim E., Alexander G. Kolesnikov, Alexey V. Ognev, Alexander S. Samardak, and Ludmila A. Chebotkevich. "Manipulation of magnetic vortex parameters in disk-on-disk nanostructures with various geometry." Beilstein Journal of Nanotechnology 6 (March 10, 2015): 697–703. http://dx.doi.org/10.3762/bjnano.6.70.

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Magnetic nanostructures in the form of a sandwich consisting of two permalloy (Py) disks with diameters of 600 and 200 nm separated by a nonmagnetic interlayer are studied. Magnetization reversal of the disk-on-disk nanostructures depends on the distance between centers of the small and big disks and on orientation of an external magnetic field applied during measurements. It is found that manipulation of the magnetic vortex chirality and the trajectory of the vortex core in the big disk is only possible in asymmetric nanostructures. Experimentally studied peculiarities of a motion path of the

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15

Sudsom, Devika, Irén Juhász Junger, Christoph Döpke, Tomasz Blachowicz, Lothar Hahn, and Andrea Ehrmann. "Micromagnetic Simulation of Vortex Development in Magnetic Bi-Material Bow-Tie Structures." Condensed Matter 5, no. 1 (2020): 5. http://dx.doi.org/10.3390/condmat5010005.

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Magnetic vortex structures are of high technological relevance due to their possible application in magnetic memory. Moreover, investigating magnetization reversal via vortex formation is an important topic in basic research. Typically, such vortices are only investigated in homogeneous magnetic materials of diverse shapes. Here, we report for the first time on micromagnetic simulation of vortex formation in magnetic bow-tie nanostructures, comprising alternating parts from iron and permalloy, investigated for two different thicknesses and under different angles of the external magnetic field.

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16

Geng, Liwei D., and Yongmei M. Jin. "Magnetic vortex racetrack memory." Journal of Magnetism and Magnetic Materials 423 (February 2017): 84–89. http://dx.doi.org/10.1016/j.jmmm.2016.09.062.

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17

Barros, Manuel, José L. Cabrerizo, Manuel Fernández, and Alfonso Romero. "Magnetic vortex filament flows." Journal of Mathematical Physics 48, no. 8 (2007): 082904. http://dx.doi.org/10.1063/1.2767535.

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18

Li, Z., and J. H. P. Watson. "Vortex magnetic separation (VMS)." IEEE Transactions on Magnetics 30, no. 6 (1994): 4662–64. http://dx.doi.org/10.1109/20.334182.

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19

Shelyag, S., V. Fedun, F. P. Keenan, R. Erdélyi, and M. Mathioudakis. "Photospheric magnetic vortex structures." Annales Geophysicae 29, no. 5 (2011): 883–87. http://dx.doi.org/10.5194/angeo-29-883-2011.

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Abstract. Using direct numerical magneto-hydrodynamic (MHD) simulations, we demonstrate the evidence of two physically different types of vortex motions in the solar photosphere. Baroclinic motions of plasma in non-magnetic granules are the primary source of vorticity in granular regions of the solar photosphere, however, there is a significantly more efficient mechanism of vorticity production in strongly magnetised intergranular lanes. These swirly motions of plasma in intergranular magnetic field concentrations could be responsible for the generation of different types of MHD wave modes, fo

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20

Dritschel, D. G., P. H. Diamond, and S. M. Tobias. "Circulation conservation and vortex breakup in magnetohydrodynamics at low magnetic Prandtl number." Journal of Fluid Mechanics 857 (October 15, 2018): 38–60. http://dx.doi.org/10.1017/jfm.2018.719.

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In this paper we examine the role of weak magnetic fields in breaking Kelvin’s circulation theorem and in vortex breakup in two-dimensional magnetohydrodynamics for the physically important case of a fluid with low magnetic Prandtl number (low $Pm$ ). We consider three canonical inviscid solutions for the purely hydrodynamical problem, namely a Gaussian vortex, a circular vortex patch and an elliptical vortex patch. We examine how magnetic fields lead to an initial loss of circulation $\unicode[STIX]{x1D6E4}$ and attempt to derive scaling laws for the loss of circulation as a function of field

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21

Acosta, Jesús González, Miryam R. Joya, and J. Barba-Ortega. "Influence of short-range artificial defects in a macroscopic flat disk on the Abrikosov state." International Journal of Modern Physics B 28, no. 32 (2014): 1450227. http://dx.doi.org/10.1142/s0217979214502270.

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We study the vortex configuration in a superconducting macroscopic flat disk with central defects in the presence of a uniform applied magnetic field. Owing to the defects nature on the thin disk, vortices are able to form geometry induced, quasi-symmetric configurations of disk, triangle and concentric shells in the rest of the disk. The theoretical study made on this mesoscopic systems allows us to trace not only how the vortex pattern evolves with magnetic field, but also how the defect can be used to show the pinning and anti-pinning effect. The magnetic induction, vortex number, magnetiza

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22

Kirillov, A. A., and E. P. Savelova. "Magnetic traversable wormhole as accelerator of charged particles." International Journal of Modern Physics A 35, no. 02n03 (2020): 2040026. http://dx.doi.org/10.1142/s0217751x20400266.

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We show that the scattering of radiation on a traversable wormhole forms a vortex in the radiation energy flux. Then, if the wormhole possesses also a magnetic fields, the vortex accelerates charged particles along the magnetic lines and such a system works as an accelerator. If the vortex is small, the system reaches the stationary state, when the income of the kinetic energy reradiates completely in the form of the synchrotron radiation. Such a mechanism allows us to relate a part of observed sources of the synchrotron radiation to magnetic wormholes.

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23

ELISTRATOV, A. A., O. A. BOBRIKOV, I. L. MAKSIMOV, and V. JEUDY. "GEOMETRICAL BARRIER IN A SUPERCONDUCTING STRIP: SINGLE-VORTEX APPROACH." Modern Physics Letters B 18, no. 01 (2004): 19–26. http://dx.doi.org/10.1142/s0217984904006408.

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The problem of the geometrical barrier is solved for the vortex fragment entering from the corners of a superconducting strip, placed into a perpendicular magnetic field. A single-vortex Gibbs potential is constructed for the first time taking into account the actual current/field distribution in a sample of rectangular cross-section. The dependence of the vortex inclination angle as well as the vortex altitude on the external magnetic field is determined. Geometrical barrier-suppression field is found at which near-the-edge vortices start penetrating deep into the strip.

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24

SILVA, E., R. MARCON, R. FASTAMPA, M. GIURA та S. SARTI. "MAGNETIC FIELD ORIENTATION DEPENDENCE OF THE MICROWAVE RESPONSE IN YBa2Cu3O7-δ". International Journal of Modern Physics B 17, № 04n06 (2003): 929–35. http://dx.doi.org/10.1142/s0217979203016844.

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We present microwave resistivity measurements at 21 GHz in YBa 2 Cu 3 O 7-δ thin film as a function of the temperature and the magnetic field. Measurements are taken in various relative orientations of the microwave current, dc magnetic field and c axis. Attention is focussed on measurements taken with the dc field parallel to the (a, b) planes. In moderate magnetic field, we show that the microwave magnetic response is made up of a vortex motion contribution, which can be described by conventional models, and a noticeable magnetic field induced increase of the quasiparticle density, which exh

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25

Vogt, Tobias, Ilmārs Grants, Sven Eckert, and Gunter Gerbeth. "Spin-up of a magnetically driven tornado-like vortex." Journal of Fluid Mechanics 736 (November 14, 2013): 641–62. http://dx.doi.org/10.1017/jfm.2013.552.

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AbstractThe spin-up of a concentrated vortex in a liquid metal cylinder with a free surface is considered experimentally and numerically. The vortex is driven by two flow-independent magnetic body forces. A continuously applied rotating magnetic field provides the source of the angular momentum. A pulse of about one order of magnitude stronger travelling magnetic field drives a converging flow that temporarily focuses this angular momentum towards the axis of the container. A highly concentrated vortex forms that produces a funnel-shaped surface depression. We explore experimentally the durati

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26

Guo, Zhen Gang, Li Qing Pan, Hong Mei Qiu, M. Yasir Rafique, and Shuai Zeng. "Micromagnetic Simulation of CoFe Magnetic Nanorings: Switching Behavior in External Magnetic Field." Advanced Materials Research 710 (June 2013): 80–84. http://dx.doi.org/10.4028/www.scientific.net/amr.710.80.

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The magnetization reversal processes of magnetic nanorings (Co50Fe50) with different geometric shapes are investigated. In addition to the expected onion and vortex magnetization states, other metastable states are observed in the magnetization processes. We anatomize the formation and transition of magnetic states, and the propagation and annihilation of domain walls in the reversal process through the dynamic picture. Phase diagrams for the magnetization switching behavior depending on the geometric parameters are presented. The simulation shows that the vortex state is stabilized in thick a

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27

VOVK, R. V., A. V. SAMOILOV, I. L. GOULATIS та A. CHRONEOS. "INFLUENCE OF INTRINSIC PINNING ON THE RESISTIVE PROPERTIES OF YBa2Cu3O7-δ SINGLE CRYSTALS". Modern Physics Letters B 27, № 30 (2013): 1350220. http://dx.doi.org/10.1142/s0217984913502205.

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The dynamics of vortex matter in YBa 2 Cu 3 O 7-δ single crystal with unidirectional twin boundaries is studied experimentally in a wide range of velocities of the magnetic flux in a tilted magnetic field. It is determined that with the orientation of the magnetic field vector in the locality of the ab-plane, the dynamics of the magnetic flux near the melting temperature of the vortex lattice can be described by the Kim–Anderson model and as the temperature is lowered, by the theory of collective pinning on small-scale defects or by the vortex glass model. The intrinsic pinning caused by the l

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28

Carneiro, Gilson. "Interaction between a superconducting vortex and a magnetic vortex." Physica C: Superconductivity 460-462 (September 2007): 1186–87. http://dx.doi.org/10.1016/j.physc.2007.03.422.

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29

Mitin, D., D. Nissen, P. Schädlich, S. S. P. K. Arekapudi, and M. Albrecht. "Single vortex core recording in a magnetic vortex lattice." Journal of Applied Physics 115, no. 6 (2014): 063906. http://dx.doi.org/10.1063/1.4865746.

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30

COSTA, B. V., J. C. S. ROCHA, P. Z. COURA, S. A. LEONEL, D. TOSCANO, and R. A. DIAS. "MAGNETIC VORTEX BEHAVIOR IN NANO-STRUCTURES." International Journal of Modern Physics C 23, no. 08 (2012): 1240003. http://dx.doi.org/10.1142/s0129183112400037.

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The existence of a vortex in the ground state of magnetic nano-disks has open a wide range of possibilities for constructing new ultra-compact devices. In this work we study the dynamical behavior of a vortex in a magnetic nano-particle. First, we introduce magnetic impurities in the system. It is observed that depending on the strength of the interaction the impurities can behave both as a pinning (attractive) or scattering (repulsive). By using the known values of the parameters for Permalloy-79 we have calculated the interaction energy of the vortex core with a single defect. We estimated t

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31

Boust, Fabrice, and Nicolas Vukadinovic. "Magnetic excitations in assemblies of dipolar coupled nanoparticles." EPJ Web of Conferences 244 (2020): 01015. http://dx.doi.org/10.1051/epjconf/202024401015.

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The equilibrium magnetization configurations and the associated microwave susceptibility spectra of dipolar coupled nanoplatelets are explored using three-dimensional (3D) micromagnetic simulations. First, the case of periodic arrangements of nanoplatelets on square arrays is considered. As a result, a macro-vortex state defined as a flux closure pattern spreading over the whole array with or without a vortex core can be stabilized starting from an initial orthoradial magnetization configuration. For macro-vortex states with a vortex core, the linear excitation spectrum exhibits a sub-GHz reso

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32

Liu, Jixing, and Wendell Horton. "The intrinsic electromagnetic solitary vortices in magnetized plasma." Journal of Plasma Physics 36, no. 1 (1986): 1–24. http://dx.doi.org/10.1017/s0022377800011557.

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Several Rossby-type vortex solutions constructed for electromagnetic perturbations in magnetized plasma encounter the difficulty that the perturbed magnetic field and the parallel current are not continuous on the boundary between two regions. We find that fourth-order differential equations must be solved to remove this discontinuity. Special solutions for two types of boundary value problem for the fourth-order partial differential equations are presented. By applying these solutions to different nonlinear equations in magnetized plasma, the intrinsic electromagnetic solitary drift-Alfvén vo

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33

Sommeria, Joël. "Electrically driven vortices in a strong magnetic field." Journal of Fluid Mechanics 189 (April 1988): 553–69. http://dx.doi.org/10.1017/s0022112088001144.

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A steady isolated vortex is produced in a horizontal layer of mercury (of thickness a), subjected to a uniform vertical magnetic field. The vortex is forced by an electric current going from an electrode in the lower plane to the circular outer frame. The flow is investigated by streak photographs of small particles following the free upper surface, and by electric potential measurements. The agreement with the asymptotic theory for high values of the Hartmann number M is excellent for moderate electric currents. In particular all the current stays in the thin Hartmann layer of thickness a/M,

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34

Singha, Sintu, K. P. Sinhamahapatra, and S. K. Mukherjea. "Control of Vortex Shedding From a Bluff Body Using Imposed Magnetic Field." Journal of Fluids Engineering 129, no. 5 (2006): 517–23. http://dx.doi.org/10.1115/1.2717616.

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The two-dimensional incompressible laminar viscous flow of a conducting fluid past a square cylinder placed centrally in a channel subjected to an imposed transverse magnetic field has been simulated to study the effect of a magnetic field on vortex shedding from a bluff body at different Reynolds numbers varying from 50 to 250. The present staggered grid finite difference simulation shows that for a steady flow the separated zone behind the cylinder is reduced as the magnetic field strength is increased. For flows in the periodic vortex shedding and unsteady wake regime an imposed transverse

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35

Орлов, В. А., А. А. Иванов та И. Н. Орлова. "Движение взаимодействующих магнитных вихрей в параллельных нанолентах". Физика твердого тела 61, № 3 (2019): 493. http://dx.doi.org/10.21883/ftt.2019.03.47241.285.

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AbstractThe periodic motion of the interacting vortex domain walls in a pair of nanostripes has been theoretically investigated. As a model, two parallel nanostripes with magnetization inhomogeneities in the form of magnetic vortices have been examined. The magnetic subsystems of the stripes are magnetostatically coupled. The quasi-elastic coupling between vortices ensures the existence of normal modes of the periodic magnetization motion. The frequencies of these modes have been calculated. It is shown that not any combination of the vortex topological charge leads to the resonant behavior of

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36

Chen, Rui-Pin, and Khian-Hooi Chew. "Far-field properties of a vortex Airy beam." Laser and Particle Beams 31, no. 1 (2012): 9–15. http://dx.doi.org/10.1017/s0263034612000729.

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AbstractAnalytical far-field expressions for the transverse electric mode and transverse electric magnetic mode terms, and the energy flux distributions of vortex Airy beams are derived based on the vector angular spectrum of the beam and the stationary phase method. The physical pictures of vortex Airy beams from the vectorial structure are illustrated and the energy flux distributions are demonstrated in far-field. The influences of the beam parameters, especially the exponential factor, on the energy flux distributions of vortex Airy beams and its transverse electric mode and transverse ele

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37

BAJER, KONRAD, and H. K. MOFFATT. "On the effect of a central vortex on a stretched magnetic flux tube." Journal of Fluid Mechanics 339 (May 25, 1997): 121–42. http://dx.doi.org/10.1017/s0022112097005466.

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Experiments and numerical simulations of fully developed turbulence reveal the existence of elongated vortices whose length is of the order of the integral scale of turbulence while the diameter is somewhere between the Kolmogorov scale and the Taylor microscale. These vortices are embedded in quasi-irrotational background flow whose straining action counteracts viscous decay and determines their cross-sectional shape. In the present paper we analyse the effect of a stretched vortex of this kind on a uni-directional magnetic flux tube aligned with vorticity in an electrically conducting fluid.

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38

SITENKO, YU A., and N. D. VLASII. "THE AHARONOV-BOHM EFFECT IN SCATTERING OF QUASICLASSICAL PARTICLES." International Journal of Modern Physics: Conference Series 14 (January 2012): 551–60. http://dx.doi.org/10.1142/s2010194512007684.

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Quantum-mechanical scattering of nonrelativistic charged particles by a magnetic vortex of nonzero transverse size is considered. The high-frequency limit of a scattered particle corresponds to the quasiclassical limit, and we show that the scattering Aharonov-Bohm effect persists in the quasiclassical limit owing to the Fraunhofer diffraction in the forward direction. Therefore, the flux of a magnetic vortex serves as a gate for the propagation of quasiclassical particles moving orthogonally to the vortex. The issue of the experimental detection of the Fraunhofer diffraction peak and the scat

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39

Browne, P. F. "Phenomena Involving Magnetic Vortex Tubes." Symposium - International Astronomical Union 140 (1990): 136–38. http://dx.doi.org/10.1017/s0074180900189776.

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Magnetic vortex tubes (MVTs) on a hierarchy of scales occur universally. On the largest scale they channel bipolar outflows of gas. A pinched region of MVT provides an acceleration mechanism capable of yielding the maximum cosmic ray energies.

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40

Zharkov, G. F., and V. G. Zharkov. "Magnetic Vortex in Superconducting Wire." Physica Scripta 57, no. 6 (1998): 664–67. http://dx.doi.org/10.1088/0031-8949/57/6/011.

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41

Yuan, H. Y., and X. R. Wang. "Nano magnetic vortex wall guide." AIP Advances 5, no. 11 (2015): 117104. http://dx.doi.org/10.1063/1.4935276.

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42

Subramani, A., D. Geerpuram, A. Domanowski, V. Baskaran, and V. Metlushko. "Vortex state in magnetic rings." Physica C: Superconductivity 404, no. 1-4 (2004): 241–45. http://dx.doi.org/10.1016/j.physc.2003.11.044.

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43

Browne, P. F. "Magnetic Vortex Tubes in Astrophysics." IEEE Transactions on Plasma Science 14, no. 6 (1986): 718–39. http://dx.doi.org/10.1109/tps.1986.4316622.

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Fried, Jasper P., and Peter J. Metaxas. "Nanoparticle-Modified Magnetic Vortex Dynamics." IEEE Magnetics Letters 8 (2017): 1–5. http://dx.doi.org/10.1109/lmag.2017.2684744.

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Kammerer, Matthias, Markus Sproll, Hermann Stoll, et al. "Delayed magnetic vortex core reversal." Applied Physics Letters 102, no. 1 (2013): 012404. http://dx.doi.org/10.1063/1.4773592.

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Roy, Pinaki. "Magnetic point vortex and parasupersymmetry." Physics Letters B 305, no. 4 (1993): 353–56. http://dx.doi.org/10.1016/0370-2693(93)91067-w.

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Tziotziou, K., G. Tsiropoula, and I. Kontogiannis. "A persistent quiet-Sun small-scale tornado." Astronomy & Astrophysics 623 (March 2019): A160. http://dx.doi.org/10.1051/0004-6361/201834679.

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Context. Recently, the appearance, characteristics, and dynamics of a persistent 1.7 h vortex flow, resembling a small-scale tornado, have been investigated with observations both from the ground and from space in a quiet-Sun region in several lines and channels and for the first time in the Hα line centre. The vortex flow showed significant substructure in the form of several intermittent chromospheric swirls. Aims. We investigate the oscillatory behaviour of various physical parameters in the vortex area in an attempt to better understand the physics of the reported vortex flow. This is the

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Krynytskyi, Yuri, and Andrij Rovenchak. "Multipole expansions for time-dependent charge and current distributions in quasistatic approximation." Modern Physics Letters A 34, no. 02 (2019): 1950018. http://dx.doi.org/10.1142/s0217732319500184.

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We propose a consistent approach to the definition of electric, magnetic and toroidal multipole moments. Electric and magnetic fields are split into potential, vortex and radiative terms, with the latter ones dropped off in the quasistatic approximation. The potential part of the electric field, the vortex parts of the magnetic field and vector potential contain gradients of scalar functions. Formally introducing magnetic and toroidal analogs of the electric charge, we apply multipole expansions for those scalars. Closed-form expressions are derived in an arbitrary order for electric, magnetic

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Karpov, P. I., and S. I. Mukhin. "Polarizability of electrically induced magnetic vortex “atoms”." EPJ Web of Conferences 185 (2018): 07003. http://dx.doi.org/10.1051/epjconf/201818507003.

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Electric field control of magnetic structures, particularly topological defects in magnetoelectric materials, draws a great attention, which has led to experimental success in creation and manipulation of single magnetic defects, such as skyrmions and domain walls. In this work we explore a scenario of electric field creation of another type of topological defects – magnetic vortices and antivortices. Because of interaction of magnetic and electric subsystems each magnetic vortex (antivortex) in magnetoelectric materials possesses quantized magnetic charge, responsible for interaction between

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Requerey, Iker S., Basilio Ruiz Cobo, Milan Gošić, and Luis R. Bellot Rubio. "Persistent magnetic vortex flow at a supergranular vertex." Astronomy & Astrophysics 610 (February 2018): A84. http://dx.doi.org/10.1051/0004-6361/201731842.

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Context. Photospheric vortex flows are thought to play a key role in the evolution of magnetic fields. Recent studies show that these swirling motions are ubiquitous in the solar surface convection and occur in a wide range of temporal and spatial scales. Their interplay with magnetic fields is poorly characterized, however. Aims. We study the relation between a persistent photospheric vortex flow and the evolution of a network magnetic element at a supergranular vertex. Methods. We used long-duration sequences of continuum intensity images acquired with Hinode and the local correlation-tracki

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