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Phase diagram of vortex matter of type-II superconductors

Phase diagram of vortex matter of type-II superconductors
Phase diagram of vortex matter of type-II superconductors
We propose a model to construct the phase diagram for type-II superconductors through molecular-dynamics simulation. In this model, the Abrikosov vortices interact with long-range repulsion and short-range attraction. We are able to obtain the phase diagrams consisting of the vortex lattice, the intermediate-mixed phase (IMP), and the disordered vortex phase in the B-T, B-?, and B-q planes, where B is induction, ? is the Ginzburg-Landau parameter, and q is the relative strength of the attraction to repulsion interactions between vortices. The IMP is in the form of a superlattice of either vortex bubbles or parallel vortex stripes, agreeing excellently with experimental results that have not yet been explained by existing models.

1550-235X
014501-[5pp]
Xu, X.B.
a2ddcbc4-6195-426f-b0dc-60e6f560fa07
Fangohr, H.
9b7cfab9-d5dc-45dc-947c-2eba5c81a160
Ding, S.Y.
fd2e0fdd-9f94-4a65-a228-afffd99c000b
Zhou, F.
7a3bb861-3b3a-448c-a266-c47dd356d448
Xu, X.N.
fe0645d3-cbf8-48dd-bdb8-7b610e35cf95
Wang, Z.H.
8ed29dad-b9a9-4f17-8aef-7da278c2a057
Gu, M.
9f22a6ef-7e9e-4074-b0de-c1e843705d96
Shi, D.Q.
294be8e6-69c8-4cac-9fde-4dae24c47748
Dou, S.X.
896fcf39-9c7c-459e-a50b-11efc49b05a6
Xu, X.B.
a2ddcbc4-6195-426f-b0dc-60e6f560fa07
Fangohr, H.
9b7cfab9-d5dc-45dc-947c-2eba5c81a160
Ding, S.Y.
fd2e0fdd-9f94-4a65-a228-afffd99c000b
Zhou, F.
7a3bb861-3b3a-448c-a266-c47dd356d448
Xu, X.N.
fe0645d3-cbf8-48dd-bdb8-7b610e35cf95
Wang, Z.H.
8ed29dad-b9a9-4f17-8aef-7da278c2a057
Gu, M.
9f22a6ef-7e9e-4074-b0de-c1e843705d96
Shi, D.Q.
294be8e6-69c8-4cac-9fde-4dae24c47748
Dou, S.X.
896fcf39-9c7c-459e-a50b-11efc49b05a6

Xu, X.B., Fangohr, H., Ding, S.Y., Zhou, F., Xu, X.N., Wang, Z.H., Gu, M., Shi, D.Q. and Dou, S.X. (2011) Phase diagram of vortex matter of type-II superconductors. Physical Review B, 83 (1), 014501-[5pp]. (doi:10.1103/PhysRevB.83.014501).

Record type: Article

Abstract

We propose a model to construct the phase diagram for type-II superconductors through molecular-dynamics simulation. In this model, the Abrikosov vortices interact with long-range repulsion and short-range attraction. We are able to obtain the phase diagrams consisting of the vortex lattice, the intermediate-mixed phase (IMP), and the disordered vortex phase in the B-T, B-?, and B-q planes, where B is induction, ? is the Ginzburg-Landau parameter, and q is the relative strength of the attraction to repulsion interactions between vortices. The IMP is in the form of a superlattice of either vortex bubbles or parallel vortex stripes, agreeing excellently with experimental results that have not yet been explained by existing models.

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Xu_2011.pdf - Accepted Manuscript
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Published date: 3 January 2011

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Local EPrints ID: 172475
URI: https://eprints.soton.ac.uk/id/eprint/172475
ISSN: 1550-235X
PURE UUID: 7fa9385d-6aeb-49ea-a1e0-b8fc0315e15a

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Date deposited: 27 Jan 2011 08:23
Last modified: 18 Jul 2017 12:14

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Contributors

Author: X.B. Xu
Author: H. Fangohr
Author: S.Y. Ding
Author: F. Zhou
Author: X.N. Xu
Author: Z.H. Wang
Author: M. Gu
Author: D.Q. Shi
Author: S.X. Dou

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