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Quantum tunneling of vortices has been found to be an important novel phenomena for description of low temperature creep in high temperature superconductors (HTSCs). We speculate that quantum tunneling may be also exhibited in mesoscopic…

Quantum Physics · Physics 2009-11-16 D. R. Gulevich , F. V. Kusmartsev

We present the experimental observation of magnetic field line curvature at the surface of a superconducting film by local quantitative magneto-optics. In addition to the knowledge of the full induction field at the superconductor surface…

Superconductivity · Physics 2009-11-07 F. Laviano , D. Botta , A. Chiodoni , R. Gerbaldo , G. Ghigo , L. Gozzelino , E. Mezzetti , .

This study conducts a comprehensive investigation into the reversal mechanism of magnetic vortex cores in a nanopillar system composed of two coupled ferromagnetic dots under zero magnetic field conditions. The research employs a…

Materials Science · Physics 2023-02-24 A. Hamadeh , A. Koujok , S. Perna , D. R. Rodrigues , A. Riveros , V. Lomakin , G. Finocchio , G. de Loubens , O. Klein , P. Pirro

A deconstructed holographic model for an $s$-wave superconductor in $2+1$ dimensions has been proposed in the literature. Here, we consider solutions in the presence of perpendicular magnetic fields, where vortex formed. We calculate the…

High Energy Physics - Theory · Physics 2018-06-07 Zainul Abidin , Herry J. Kwee , Jong Anly Tan

Inspired by the recent experiments in monolayer iron-based superconductors, we theoretically investigate properties of a two-dimensional multiband superconductor, focusing on two aspects. First, for vortex bound states, the spatial…

Superconductivity · Physics 2024-08-06 Haijiao Ji , Noah F. Q. Yuan

A method is developed to compute minimal energy vortex lattices in a general Ginzburg-Landau model of a superconductor subjected to an applied magnetic field. The model may have any number of components and may be spatially anisotropic. The…

Superconductivity · Physics 2025-03-03 Martin Speight , Thomas Winyard

We use analytic and numerical methods to analyze the dynamics of vortices following the quench of a Type-II superconductor under the application of an external magnetic field. In three dimensions, in the absence of a field, the spacing…

Superconductivity · Physics 2009-11-11 Nicholas Guttenberg , Nigel Goldenfeld

The motion of a vortex-(anti)vortex pair is studied numerically in the framework of a dynamical Ginzburg-Landau model, relevant to the description of a superconductor or of an idealized bosonic plasma. It is shown that up to a fine…

High Energy Physics - Theory · Physics 2009-10-30 G. N. Stratopoulos , T. N. Tomaras

Reconstruction of conformal mappings from canonical slit domains onto multiply-connected physical domains with a free boundary is of interest in many different models arising in fluid mechanics. In the present paper, an exact formula for…

Complex Variables · Mathematics 2021-02-26 Y. A. Antipov , A. Y. Zemlyanova

We study the dynamics of quantized superfluid vortices on axisymmetric compact surfaces with no holes, where the total vortex charge must vanish and the condition of irrotational flow forbids distributed vorticity. A conformal…

Quantum Gases · Physics 2022-02-16 Mônica A. Caracanhas , Pietro Massignan , Alexander L. Fetter

The unzipping of vortex lines using magnetic-force microscopy from extended defects is studied theoretically. We study both the unzipping isolated vortex from common defects, such as columnar pins and twin-planes, and the unzipping of a…

Statistical Mechanics · Physics 2011-11-10 Yariv Kafri , David R. Nelson , Anatoli Polkovnikov

Treatment of the vortex motion in the superfluids of the inner crust and the outer core of neutron stars is a key ingredient in modeling a number of pulsar phenomena, including glitches and magnetic field evolution. After recalculating the…

High Energy Astrophysical Phenomena · Physics 2016-08-17 Erbil Gügercinoğlu , M. Ali Alpar

We have experimentally studied the impact of an initially planar axisymmetric vortex ring, incident at an oblique angle, upon a gravity-induced interface separating two fluids of differing densities. After impact, the vortex ring was found…

Fluid Dynamics · Physics 2011-02-01 Kerry Kuehn , Matthew Moeller , Michael Schulz , Daniel Sanfelippo

In this paper we analyze the structure, phase transitions and some transport properties of the vortex system when the external magnetic field lies parallel to the planes in layered superconductors. We show that experimental results for…

Superconductivity · Physics 2009-10-31 M. F. Laguna , D. Dominguez , C. A. Balseiro

We study the dynamics of a vortex state nanodisk due to a dc spin current, perpendicular to the disk plane. The irreversible switching of the vortex polarity takes place above some threshold current. The detailed description of these…

Strongly Correlated Electrons · Physics 2007-08-26 Denis D. Sheka , Yuri Gaididei , Franz G. Mertens

We use Monte Carlo simulation to study the vortex nucleation on magnetic nanodots at low temperature. In our simulations, we have considered a simple microscopic two-dimensional anisotropic Heisenberg model with term to describe the…

Statistical Mechanics · Physics 2010-10-22 S. A. Leonel , I. A. Marques , P. Z. Coura , B. V. Costa

We ask what determines the (small) angle of turbulent jets. To answer this question we first construct a deterministic vortex-street model representing the large scale structure in a self-similar plane turbulent jet. Without adjustable…

Chaotic Dynamics · Physics 2009-11-13 Victor L'vov , Anna Pomyalov , Itamar Procaccia , Rama Govindarajan

We investigate the dynamics of a magnetic vortex driven by spin-transfer torque due to spin current in the adiabatic case. The vortex core represented by collective coordinate experiences a transverse force proportional to the product of…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Junya Shibata , Yoshinobu Nakatani , Gen Tatara , Hiroshi Kohno , Yoshichika Otani

The vortex states in a thin mesoscopic disk are investigated within the phenomenological Ginzburg-Landau theory in the presence of different ''model'' magnetic field profiles with zero average field which may result from a ferromagnetic…

Superconductivity · Physics 2009-11-07 M. V. Milosevic , S. V. Yampolskii , F. M. Peeters

Various techniques have been applied to visualize superconducting vortices, providing clues to their electromagnetic response. Here, we present a wide-field, quantitative imaging of the stray field of the vortices in a superconducting thin…