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Vortex dynamics for low-? type-II superconductors

Vortex dynamics for low-? type-II superconductors
Vortex dynamics for low-? type-II superconductors
Based on a model appropriate for “marginally type-II” superconducting system, we study the dynamics of
vortices with competing interactions by Langevin dynamics simulation. In addition to pinned states and plastic
flow, we find that the moving vortex system forms ordered bubble configurations and stripe structures, depending
on pinning strength and driving force. The vortex system exhibits a marked hysteresis in its velocity-force
characteristic, which results from a dynamical stripe reordering due to intervortex attraction.
1550-235X
Xu, X.
6da974fd-c59c-4388-8eaf-73017928017a
Fangohr, H.
9b7cfab9-d5dc-45dc-947c-2eba5c81a160
Wang, Z.
8983928f-aca4-4b48-a71b-959646c6aa77
Gu, M.
9f22a6ef-7e9e-4074-b0de-c1e843705d96
Liu, S.
d9354aa4-d43e-4a09-a478-8e9850add6bb
Shi, D.
51fcd83c-f183-4eae-8358-fd225b6b8033
Dou, S.
62376286-bab4-4ef0-8879-70da63471133
Xu, X.
6da974fd-c59c-4388-8eaf-73017928017a
Fangohr, H.
9b7cfab9-d5dc-45dc-947c-2eba5c81a160
Wang, Z.
8983928f-aca4-4b48-a71b-959646c6aa77
Gu, M.
9f22a6ef-7e9e-4074-b0de-c1e843705d96
Liu, S.
d9354aa4-d43e-4a09-a478-8e9850add6bb
Shi, D.
51fcd83c-f183-4eae-8358-fd225b6b8033
Dou, S.
62376286-bab4-4ef0-8879-70da63471133

Xu, X., Fangohr, H., Wang, Z., Gu, M., Liu, S., Shi, D. and Dou, S. (2011) Vortex dynamics for low-? type-II superconductors. Physical Review B, 84 (1). (doi:10.1103/PhysRevB.84.014515).

Record type: Article

Abstract

Based on a model appropriate for “marginally type-II” superconducting system, we study the dynamics of
vortices with competing interactions by Langevin dynamics simulation. In addition to pinned states and plastic
flow, we find that the moving vortex system forms ordered bubble configurations and stripe structures, depending
on pinning strength and driving force. The vortex system exhibits a marked hysteresis in its velocity-force
characteristic, which results from a dynamical stripe reordering due to intervortex attraction.

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Published date: 26 July 2011
Organisations: Computational Engineering & Design Group

Identifiers

Local EPrints ID: 335938
URI: https://eprints.soton.ac.uk/id/eprint/335938
ISSN: 1550-235X
PURE UUID: b79db473-d424-45e8-af26-3ce52f89941e

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Date deposited: 14 Mar 2012 17:04
Last modified: 18 Jul 2017 06:10

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