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Related papers: Local mapping of dissipative vortex motion

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In a type II superconductor the gap variation in the core of a vortex line induces a local charge modulation. Accounting for metallic screening, we determine the line charge of individual vortices and calculate the electric field…

Condensed Matter · Physics 2009-10-28 Gianni Blatter , Mikhail Feigel'man , Vadim Geshkenbein , Anatoli Larkin , Anne van Otterlo

Depinning of vortices in percolative superconductor containing fractal clusters of a normal phase is considered. Transition of the superconductor into a resistive state corresponds to the percolation transition from a pinned vortex state to…

Superconductivity · Physics 2009-11-10 Yuriy I. Kuzmin

In a rotating two-phase sample of 3He-B and magnetic-field stabilized 3He-A the large difference in mutual friction dissipation at 0.20 Tc gives rise to unusual vortex flow responses. We use noninvasive NMR techniques to monitor spin down…

Other Condensed Matter · Physics 2011-12-20 P. M. Walmsley , V. B. Eltsov , P. J. Heikkinen , J. J. Hosio , R. Hanninen , M. Krusius

We demonstrate the detection and control of individual Abrikosov vortices in superconducting microwave resonators. $\lambda/4$ resonators with a narrowed region near the grounded end acting as a vortex trap were fabricated and studied using…

Vortex dynamics in a bilayer thin film superconductor are studied through a Josephson-coupled double layer XY model. A renormalization group analysis shows that there are three possible states associated with the relative phase of the…

Superconductivity · Physics 2009-11-11 Wei Zhang , H. A. Fertig

We studied response of the Josephson vortex lattice in layered superconductors to the high-frequency c-axis electric field. We found a simple relation connecting the dynamic dielectric constant with the perturbation of the superconducting…

Superconductivity · Physics 2011-11-09 A. E. Koshelev

Vortices in superconductors driven at microwave frequencies exhibit a response related to the interplay between the vortex viscosity, pinning strength, and flux creep effects. At the same time, the trapping of vortices in superconducting…

Superconductivity · Physics 2009-06-18 C. Song , T. W. Heitmann , M. P. DeFeo , K. Yu , R. McDermott , M. Neeley , John M. Martinis , B. L. T. Plourde

We present here a calculation of the inertial mass of a moving vortex in cuprate superconductors. This is a poorly known basic quantity of obvious interest in vortex dynamics. The motion of a vortex causes a dipolar density distortion and…

Superconductivity · Physics 2009-10-30 D. M. Gaitonde , T. V. Ramakrishnan

In a vortex-state magnetic nano-disk, the static magnetization is curling in the plane, except in the core region where it is pointing out-of-plane, either up or down leading to two possible stable states of opposite core polarity p.…

The stability of the superconducting dissipationless and resistive states in single-crystalline NbSe2 nanobelts is characterized by transport measurements in an external magnetic field (H). Current-driven electrical measurements show…

Superconductivity · Physics 2015-06-25 Abram Falk , Mandar M. Deshmukh , Amy L. Prieto , Jeffrey J. Urban , Andrea Jonas , Hongkun Park

In magnetic superconductors a moving vortex lattice is accompanied by an ac magnetic field which leads to the generation of spin waves. At resonance conditions the dynamics of vortices in magnetic superconductors changes drastically,…

Superconductivity · Physics 2009-11-11 L. N. Bulaevskii , M. Hruška , M. P. Maley

We demonstrate that, in contrast to the single-component Abrikosov vortex, in two-component superconductors vortex solutions with exponentially screened magnetic field exist only in exceptional cases: in the case of vortices carrying an…

Superconductivity · Physics 2011-10-17 Egor Babaev , Juha Jäykkä , Martin Speight

The influence of the geometry of a thin superconducting sample on the penetration of the magnetic field lines and the arrangement of vortices are investigated theoretically. We compare superconducting disks, squares and triangles with the…

Superconductivity · Physics 2009-11-07 B. J. Baelus , F. M. Peeters

Departing from the conventional view on superconducting vortices as a parasitic source of dissipation for charge transport, we propose to use mobile vortices as topologically-stable information carriers for spin transport. To this end, we…

Mesoscale and Nanoscale Physics · Physics 2018-11-01 Se Kwon Kim , Roberto Myers , Yaroslav Tserkovnyak

Using the high-sensitive mechanical method of measuring the dissipation processes in superconductors, the 3D-2D phase transition in magnetic field was investigated in the vortex lattice of strongly anisotropic high-temperature…

Superconductivity · Physics 2015-06-24 J. G. Chigvinadze , A. A. Iashvili , T. V. Machaidze

Type-II superconductors under magnetic fields are in a quantum coherent non-dissipative state as long as vortices remain pinned. Dissipation appears when vortices depin, eventually driven by thermal fluctuations. This can be associated to a…

We show that for a thin superconducting strip placed in a transverse dc magnetic field - the typical geometry of experiments with high-Tc superconductors - the application of a weak ac magnetic field perpendicular to the dc field generates…

Superconductivity · Physics 2009-11-07 Ernst Helmut Brandt , Grigorii P. Mikitik

We examine metastable and transient effects both above and below the first-order decoupling line in a 3D simulation of magnetically interacting pancake vortices. We observe pronounced transient and history effects as well as supercooling…

Superconductivity · Physics 2009-11-10 C. J. Olson , C. Reichhardt , R. T. Scalettar , G. T. Zimanyi , N. Gronbech-Jensen

We use large-scale parallel simulations to compute the motion of superconducting magnetic vortices during avalanches triggered by small field increases. We find that experimentally observable voltage bursts correspond to pulsing vortex…

Superconductivity · Physics 2015-06-25 C. J. Olson , C. Reichhardt , J. Groth , Stuart B. Field , Franco Nori

We discuss a recent experiment in which the resistance of a superconducting film has been measured in magnetic field. A strong decrease of the superconducting film resistance has been observed when a metallic gate is placed above the film.…

Superconductivity · Physics 2009-11-13 K. Michaeli , A. M. Finkel'stein
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