Nonlocal Ginzburg-Landau theory for superconductors

T. Koyama; M. Machida

doi:10.1016/j.physc.2012.02.019

Nonlocal Ginzburg-Landau theory for superconductors

T. Koyama, M. Machida

Institute for Materials Research (IMR)

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The conventional Ginzburg-Landau (GL) theory is extended to a nonlocal one. In this nonlocal GL theory the superconducting current becomes nonlocal. The magnetic field distribution calculated in the single vortex state indicates that the interaction between vortices has an attractive part in low-κ type II superconductors with κ < κ_c ∼ 1. The attractive interaction causes the first-order transition at H_c1.

Original language	English
Pages (from-to)	100-103
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	484
DOIs	https://doi.org/10.1016/j.physc.2012.02.019
Publication status	Published - 2013 Jan 15

Keywords

Attractive interaction
Ginzburg-Landau theory
Vortex

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/j.physc.2012.02.019

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abstract = "The conventional Ginzburg-Landau (GL) theory is extended to a nonlocal one. In this nonlocal GL theory the superconducting current becomes nonlocal. The magnetic field distribution calculated in the single vortex state indicates that the interaction between vortices has an attractive part in low-κ type II superconductors with κ < κc ∼ 1. The attractive interaction causes the first-order transition at Hc1.",

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AU - Machida, M.

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AB - The conventional Ginzburg-Landau (GL) theory is extended to a nonlocal one. In this nonlocal GL theory the superconducting current becomes nonlocal. The magnetic field distribution calculated in the single vortex state indicates that the interaction between vortices has an attractive part in low-κ type II superconductors with κ < κc ∼ 1. The attractive interaction causes the first-order transition at Hc1.

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KW - Ginzburg-Landau theory

KW - Vortex

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ER -

Nonlocal Ginzburg-Landau theory for superconductors

Abstract

Keywords

ASJC Scopus subject areas

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