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The dynamic phase diagram of vortex lattices driven in disorder is calculated in two and three dimensions. A modified Lindemann criterion for the fluctuations of the distance of neighboring vortices is used, which unifies previous analytic…

Superconductivity · Physics 2009-10-30 Stefan Scheidl , Valerii M. Vinokur

The properties of vortices in Josephson junction arrays are investigated in the quantum regime near the superconductor-insulator transition. We derive and study an effective action for vortex dynamics that is valid in the region where the…

Condensed Matter · Physics 2009-10-22 Anne van Otterlo , Rosario Fazio

We show experimental switching data on microscale capacitors of lead-zirconate-titanate (PZT), which reveal time-resolved domain behavior during switching on a 100-ns scale. For small circular capacitors, an unswitched domain remains in the…

Materials Science · Physics 2008-02-04 A. Gruverman , D. Wu , H. -J. Fan , I. Vrejoiu , M. Alexe , R. J. Harrison , J. F. Scott

In multiband superconductors, each superconducting condensate supports vortices with fractional quantum flux. In the ground state, vortices in different bands are spatially bounded together to form a composite vortex, carrying one quantum…

Superconductivity · Physics 2013-02-22 Shi-Zeng Lin , Lev N. Bulaevskii

We individuated a method to distinguish a glass phase from a highly viscous liquid phase in a lattice of vortices, established in type-two superconductors. Our analysis is based on the study of the temperature dependence of numerically…

Statistical Mechanics · Physics 2009-11-10 Massimiliano Polichetti , Maria Giuseppina Adesso , Sandro Pace

Measurements of the high-frequency complex resistivity in superconductors are a tool often used to obtain the vortex parameters, such as the vortex viscosity, the pinning constant and the depinning frequency. In anisotropic superconductors,…

Superconductivity · Physics 2018-07-04 Nicola Pompeo , Enrico Silva

We discuss the low-temperature dynamics of magnetic flux lines in high-temperature superconductors in the presence of a family of parallel twin planes that contain the $c$ axis. A current applied along the twin planes drives flux motion in…

Condensed Matter · Physics 2009-10-22 M. C. Marchetti , V. M. Vinokur

Triangular arrays of Ni nanotriangles embedded in superconducting Nb films exhibit unexpected dynamical vortex effects. Collective pinning with a vortex lattice configuration different from the expected fundamental triangular "Abrikosov…

Superconductivity · Physics 2015-05-28 D. Perez de Lara , M. Erekhinsky , E. M. Gonzalez , Y. J. Rosen , Ivan K. Schuller , J. L. Vicent

Designing effective control for complex three-dimensional flow fields proves to be non-trivial. Oftentimes, intuitive control strategies lead to suboptimal control. To navigate the control space, we utilize a linear parabolized stability…

Fluid Dynamics · Physics 2018-10-17 Adam M. Edstrand , Yiyang Sun , Peter J. Schmid , Kunihiko Taira , Louis N. Cattafesta

The effect of an additional quasi-resonant drive on the dynamics of the ring-shaped incoherently pumped polariton condensates carrying angular momentum (vorticity) is studied theoretically. Numerical simulations of the 2D and 1D…

Mesoscale and Nanoscale Physics · Physics 2025-04-24 A. N. Osipov , S. V. Koniakhin , O. I. Utesov , I. S. Aronson , A. V. Yulin

Experimental measurements and numerical simulations are made on fluid flow through cross-slot devices with a range of aspect (depth:width) ratios, 0.4 < alpha < 3.87. For low Reynolds numbers Re, the flow is symmetric and a sharp boundary…

In an accompanying paper [arXiv:0903.0011v1] we have studied the equilibrium properties of vortices in a chiral quasi-twodimensional triplet superfluid/superconductor. Here we extend our studies to include the dynamical response of a vortex…

Superconductivity · Physics 2010-11-16 M. Eschrig , J. A. Sauls

Numerical calculations on a mesoscopic ring of a type II superconductor in the London limit suggest that an Abrikosov vortex can be trapped in such a structure above a critical magnetic field and generate a phase shift in the…

Superconductivity · Physics 2015-10-07 Shaun A. Mills , Chenyi Shen , Zhuan Xu , Ying Liu

There is a consensus that superconductivity (SC) in cuprates is two-dimensional. It is widely believed that the long-range phase coherence appears at T_{c} due to the Josephson coupling between SC CuO_{2} (bi-, tri-, >...)layers. Recent…

Superconductivity · Physics 2009-10-31 A. Mourachkine

The magnetization process of a superconductor is determined by the potential barrier for vortex nucleation and escape. In multicomponent superconductors, fractional vortices with a winding in the phase of only one of the components can be…

Superconductivity · Physics 2022-06-22 Andrea Maiani , Andrea Benfenati , Egor Babaev

We consider vortex solitons in large-scale arrays composed of N elliptical waveguides placed on a ring, which can be fabricated using fs-laser writing technique in transparent nonlinear dielectrics. By introducing variable twist angles…

Optics · Physics 2023-09-15 Yaroslav V. Kartashov

The wobbling motion of a triaxial rotor coupled to a high-j quasiparticle is treated semiclassi- cally. Longitudinal and transverse coupling regimes can be distinguished depending on, respectively, whether the quasiparticle angular momentum…

Nuclear Theory · Physics 2015-06-17 S. Frauendorf , F. Doenau

Many experimental and numerical studies report a large reduction of the recirculation bubble in Backward-Facing Step flows or airfoils in stall situation when excited at the natural shedding frequency $f_0$. Through a simple experiment…

Fluid Dynamics · Physics 2014-05-19 Thomas Duriez , Jean-Luc Aider , Jose Eduardo Wesfreid , Guillermo Artana

We investigate experimentally the synchronization of a vortex based spin transfer oscillator to an external rf current whose frequency is at multiple integers, as well as half integer, of the oscillator frequency. Through a theoretical…

Mesoscale and Nanoscale Physics · Physics 2017-12-21 R. Lebrun , A. Jenkins , A. Dussaux , N. Locatelli , S. Tsunegi , E. Grimaldi , H. Kubota , P. Bortolotti , K. Yakushiji , J. Grollier , A. Fukushima , S. Yuasa , V. Cros

We investigate scaling of technologically relevant magnetic tunnel junction devices in the trilayer and pentalayer configurations by varying the cross-sectional area along the transverse direction using the non-equilibrium Green's function…

Mesoscale and Nanoscale Physics · Physics 2018-09-24 Debasis Das , Ashwin Tulapurkar , Bhaskaran Muralidharan
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