Vortex dynamics in nano-scaled superconducting complex structures (d-dot)

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

doi:10.1016/j.physc.2005.03.065

Vortex dynamics in nano-scaled superconducting complex structures (d-dot)

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

Research output: Contribution to journal › Conference article › peer-review

4 Citations (Scopus)

Abstract

Using the finite element method, we have solved the time-dependent Ginzburg-Landau equation for nano-scaled composite structures with s- and d-wave superconductors, which are called d-dots. Our result shows the external current can cause the transition between two degenerate flux states of the d-dot. We have examined the time dependence of the free energy of the d-dot system during this transition and confirmed the free energy has a double-well shape. Also, we show the transition time as a function of the external current.

Original language	English
Pages (from-to)	122-126
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	426-431
Issue number	I
DOIs	https://doi.org/10.1016/j.physc.2005.03.065
Publication status	Published - 2005 Oct 1
Externally published	Yes
Event	Proceedings of the 17th International Symposium on Superconductivity (ISS 2004) Advances in Supeconductivity - Duration: 2004 Nov 23 → 2004 Nov 25

Keywords

Ginzburg-Landau theory
Half flux quantum vortex
High-T superconductors
Nano-scale superconductors

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.2005.03.065

Cite this

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title = "Vortex dynamics in nano-scaled superconducting complex structures (d-dot)",

abstract = "Using the finite element method, we have solved the time-dependent Ginzburg-Landau equation for nano-scaled composite structures with s- and d-wave superconductors, which are called d-dots. Our result shows the external current can cause the transition between two degenerate flux states of the d-dot. We have examined the time dependence of the free energy of the d-dot system during this transition and confirmed the free energy has a double-well shape. Also, we show the transition time as a function of the external current.",

keywords = "Ginzburg-Landau theory, Half flux quantum vortex, High-T superconductors, Nano-scale superconductors",

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T1 - Vortex dynamics in nano-scaled superconducting complex structures (d-dot)

AU - Ako, Masayuki

AU - Machida, Masahiko

AU - Koyama, Tomio

AU - Ishida, Takekazu

AU - Kato, Masaru

PY - 2005/10/1

Y1 - 2005/10/1

N2 - Using the finite element method, we have solved the time-dependent Ginzburg-Landau equation for nano-scaled composite structures with s- and d-wave superconductors, which are called d-dots. Our result shows the external current can cause the transition between two degenerate flux states of the d-dot. We have examined the time dependence of the free energy of the d-dot system during this transition and confirmed the free energy has a double-well shape. Also, we show the transition time as a function of the external current.

AB - Using the finite element method, we have solved the time-dependent Ginzburg-Landau equation for nano-scaled composite structures with s- and d-wave superconductors, which are called d-dots. Our result shows the external current can cause the transition between two degenerate flux states of the d-dot. We have examined the time dependence of the free energy of the d-dot system during this transition and confirmed the free energy has a double-well shape. Also, we show the transition time as a function of the external current.

KW - Ginzburg-Landau theory

KW - Half flux quantum vortex

KW - High-T superconductors

KW - Nano-scale superconductors

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DO - 10.1016/j.physc.2005.03.065

M3 - Conference article

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VL - 426-431

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EP - 126

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

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Y2 - 23 November 2004 through 25 November 2004

ER -

Vortex dynamics in nano-scaled superconducting complex structures (d-dot)

Abstract

Keywords

ASJC Scopus subject areas

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