Novel anisotropic superconductivity in nano-structured superconductors

Masaru Kato; Tomio Koyama; Masahiko Machida; Masahiko Hayashi; Hiromichi Ebisawa; Takekazu Ishida

doi:10.1016/j.physb.2007.10.275

Novel anisotropic superconductivity in nano-structured superconductors

Masaru Kato, Tomio Koyama, Masahiko Machida, Masahiko Hayashi, Hiromichi Ebisawa, Takekazu Ishida

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

Abstract

Using the Bogoliubov-de Gennes equation of a tight-binding electron model with attractive on-site and nearest-neighbor sites interactions, we investigate the superconducting structure of nano-structured anisotropic superconductors. Numerical results show that nano-scaled π/4-rotated square d-wave superconductors show various type of superconductivities depending on the size. Especially, s+id superconductivity, appears when size of superconductors is 10 times of coherence length.

Original language	English
Pages (from-to)	996-998
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	403
Issue number	5-9
DOIs	https://doi.org/10.1016/j.physb.2007.10.275
Publication status	Published - 2008 Apr 1
Externally published	Yes

Keywords

Bogoliubov-de Gennes equation
D-wave superconductors
Nano-superconductors

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/j.physb.2007.10.275

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title = "Novel anisotropic superconductivity in nano-structured superconductors",

abstract = "Using the Bogoliubov-de Gennes equation of a tight-binding electron model with attractive on-site and nearest-neighbor sites interactions, we investigate the superconducting structure of nano-structured anisotropic superconductors. Numerical results show that nano-scaled π/4-rotated square d-wave superconductors show various type of superconductivities depending on the size. Especially, s+id superconductivity, appears when size of superconductors is 10 times of coherence length.",

keywords = "Bogoliubov-de Gennes equation, D-wave superconductors, Nano-superconductors",

author = "Masaru Kato and Tomio Koyama and Masahiko Machida and Masahiko Hayashi and Hiromichi Ebisawa and Takekazu Ishida",

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AU - Kato, Masaru

AU - Koyama, Tomio

AU - Machida, Masahiko

AU - Hayashi, Masahiko

AU - Ebisawa, Hiromichi

AU - Ishida, Takekazu

PY - 2008/4/1

Y1 - 2008/4/1

N2 - Using the Bogoliubov-de Gennes equation of a tight-binding electron model with attractive on-site and nearest-neighbor sites interactions, we investigate the superconducting structure of nano-structured anisotropic superconductors. Numerical results show that nano-scaled π/4-rotated square d-wave superconductors show various type of superconductivities depending on the size. Especially, s+id superconductivity, appears when size of superconductors is 10 times of coherence length.

AB - Using the Bogoliubov-de Gennes equation of a tight-binding electron model with attractive on-site and nearest-neighbor sites interactions, we investigate the superconducting structure of nano-structured anisotropic superconductors. Numerical results show that nano-scaled π/4-rotated square d-wave superconductors show various type of superconductivities depending on the size. Especially, s+id superconductivity, appears when size of superconductors is 10 times of coherence length.

KW - Bogoliubov-de Gennes equation

KW - D-wave superconductors

KW - Nano-superconductors

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JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

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ER -

Novel anisotropic superconductivity in nano-structured superconductors

Abstract

Keywords

ASJC Scopus subject areas

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