Simulation of the phase diagram of magnetic vortices in two-dimensional superconductors: evidence for vortex chain formation
Simulation of the phase diagram of magnetic vortices in two-dimensional superconductors: evidence for vortex chain formation
We study the superconducting vortex states induced by the interplay of long-range Pearl repulsion and short-range intervortex attraction using Langevin dynamics simulations. We show that at low temperatures the vortices form an ordered Abrikosov lattice both in low and high fields. The vortices show distinctive modulated structures at intermediate fields depending on the effective intervortex attraction: ordered vortex chain and kagome-like vortex structures for weak attraction; bubble, stripe and antibubble lattices for strong attraction. Moreover, in the regime of the chain state, the vortices display structural transitions from chain to labyrinthine (or disordered chain) and/or to disordered states depending on the strength of the disorder.
1-7
Xu, X.B.
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Fangohr, H.
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Gu, M.
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Chen, W.
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Wang, Z.H.
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Zhou, F.
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Shi, D.Q.
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Dou, S.X.
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3 March 2014
Xu, X.B.
a2ddcbc4-6195-426f-b0dc-60e6f560fa07
Fangohr, H.
9b7cfab9-d5dc-45dc-947c-2eba5c81a160
Gu, M.
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Chen, W.
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Wang, Z.H.
8ed29dad-b9a9-4f17-8aef-7da278c2a057
Zhou, F.
51372e21-08da-4449-b5dd-f1a23302041f
Shi, D.Q.
294be8e6-69c8-4cac-9fde-4dae24c47748
Dou, S.X.
896fcf39-9c7c-459e-a50b-11efc49b05a6
Xu, X.B., Fangohr, H., Gu, M., Chen, W., Wang, Z.H., Zhou, F., Shi, D.Q. and Dou, S.X.
(2014)
Simulation of the phase diagram of magnetic vortices in two-dimensional superconductors: evidence for vortex chain formation.
Journal of Physics: Condensed Matter, 26 (11), .
(doi:10.1088/0953-8984/26/11/115702).
Abstract
We study the superconducting vortex states induced by the interplay of long-range Pearl repulsion and short-range intervortex attraction using Langevin dynamics simulations. We show that at low temperatures the vortices form an ordered Abrikosov lattice both in low and high fields. The vortices show distinctive modulated structures at intermediate fields depending on the effective intervortex attraction: ordered vortex chain and kagome-like vortex structures for weak attraction; bubble, stripe and antibubble lattices for strong attraction. Moreover, in the regime of the chain state, the vortices display structural transitions from chain to labyrinthine (or disordered chain) and/or to disordered states depending on the strength of the disorder.
Text
Xu et al J Cond Phys 26 115702 2014.pdf
- Accepted Manuscript
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Published date: 3 March 2014
Organisations:
Engineering Science Unit
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Local EPrints ID: 367500
URI: http://eprints.soton.ac.uk/id/eprint/367500
ISSN: 0953-8984
PURE UUID: 4885443a-77ae-4feb-b16f-4a519c5d7dca
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Date deposited: 31 Jul 2014 09:18
Last modified: 15 Mar 2024 03:03
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Author:
X.B. Xu
Author:
M. Gu
Author:
W. Chen
Author:
Z.H. Wang
Author:
F. Zhou
Author:
D.Q. Shi
Author:
S.X. Dou
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