Monte Carlo simulation of layered high temperature superconductors
Monte Carlo simulation of layered high temperature superconductors
We present results from Monte Carlo simulations of the vortex state in layered high temperature superconductors. We use a set of potentials derived from the Lawrence-Doniach free-energy functional which incorporates (i) intra-layer coupling (ii) inter-layer Josephson and electromagnetic interactions. We have employed a novel technique for performing an in-plane infinite lattice summation for the intra-layer interactions. This provides a minimum 50,000 times faster speed-up in the simulations over previous naïve methods which add periodic images in shells of increasing radius. We present results of the numerical B-T phase diagram in the pure system and obtain good agreement with available experimental/theoretical results.
1303-1304
Price, A.R.
15a6667c-60da-42e9-b6dd-4c0e56c33c52
Fangohr, H.
9b7cfab9-d5dc-45dc-947c-2eba5c81a160
Cox, S.J.
0e62aaed-24ad-4a74-b996-f606e40e5c55
de Groot, P.A.J.
98c21141-cf90-4e5c-8f2b-d2aae8efb84d
November 2000
Price, A.R.
15a6667c-60da-42e9-b6dd-4c0e56c33c52
Fangohr, H.
9b7cfab9-d5dc-45dc-947c-2eba5c81a160
Cox, S.J.
0e62aaed-24ad-4a74-b996-f606e40e5c55
de Groot, P.A.J.
98c21141-cf90-4e5c-8f2b-d2aae8efb84d
Price, A.R., Fangohr, H., Cox, S.J. and de Groot, P.A.J.
(2000)
Monte Carlo simulation of layered high temperature superconductors.
Physica C: Superconductivity and its Applications, 341-348 (2), .
(doi:10.1016/S0921-4534(00)00911-4).
Abstract
We present results from Monte Carlo simulations of the vortex state in layered high temperature superconductors. We use a set of potentials derived from the Lawrence-Doniach free-energy functional which incorporates (i) intra-layer coupling (ii) inter-layer Josephson and electromagnetic interactions. We have employed a novel technique for performing an in-plane infinite lattice summation for the intra-layer interactions. This provides a minimum 50,000 times faster speed-up in the simulations over previous naïve methods which add periodic images in shells of increasing radius. We present results of the numerical B-T phase diagram in the pure system and obtain good agreement with available experimental/theoretical results.
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Pric_00.pdf
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Published date: November 2000
Identifiers
Local EPrints ID: 21954
URI: http://eprints.soton.ac.uk/id/eprint/21954
ISSN: 0921-4534
PURE UUID: 5e96275b-ff88-411d-8887-3cf2b579696e
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Date deposited: 07 Feb 2007
Last modified: 16 Mar 2024 03:09
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Author:
A.R. Price
Author:
P.A.J. de Groot
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