Ginzburg-Landau calculations of d-wave superconducting dot in s-wave superconducting matrix

Masaru Kato; Masayuki Ako; Masahiko Machida; Tomio Koyama; Takekazu Ishida

doi:10.1016/j.physc.2004.03.241

Ginzburg-Landau calculations of d-wave superconducting dot in s-wave superconducting matrix

Masaru Kato, Masayuki Ako, Masahiko Machida, Tomio Koyama, Takekazu Ishida

Institute for Materials Research (IMR)

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

15 Citations (Scopus)

Abstract

Applying the finite element method to the Ginzburg-Landau equation, we developed a numerical method that calculated superconducting states and magnetic field distributions for the composite structures of the high-T_c superconductor and the conventional superconductor in arbitrary geometries. We show spontaneous magnetic flux appears at the corner of the boundary of these two superconductors. Also we propose high-T_c superconducting dot embedded in conventional superconductors, which is named as d-dot, and show the spatial distribution of superconducting order parameters and the magnetic field for several d-dots.

Original language	English
Pages (from-to)	352-357
Number of pages	6
Journal	Physica C: Superconductivity and its applications
Volume	412-414
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physc.2004.03.241
Publication status	Published - 2004 Oct 1

Keywords

Ginzburg-Landau equation
Half flux quantum
High- T superconductor
Nano-scaled superconductor

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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AU - Kato, Masaru

AU - Ako, Masayuki

AU - Machida, Masahiko

AU - Koyama, Tomio

AU - Ishida, Takekazu

PY - 2004/10/1

Y1 - 2004/10/1

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AB - Applying the finite element method to the Ginzburg-Landau equation, we developed a numerical method that calculated superconducting states and magnetic field distributions for the composite structures of the high-Tc superconductor and the conventional superconductor in arbitrary geometries. We show spontaneous magnetic flux appears at the corner of the boundary of these two superconductors. Also we propose high-Tc superconducting dot embedded in conventional superconductors, which is named as d-dot, and show the spatial distribution of superconducting order parameters and the magnetic field for several d-dots.

KW - Ginzburg-Landau equation

KW - Half flux quantum

KW - High- T superconductor

KW - Nano-scaled superconductor

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