Physics – Condensed Matter – Superconductivity
Scientific paper
1995-08-20
Phys. Rev. B53, 2233 (1996).
Physics
Condensed Matter
Superconductivity
RevTex,9 pages, 6 figures in a uuencoded file
Scientific paper
10.1103/PhysRevB.53.2233
Vortex structure of $d_{x^2-y^2}$-wave superconductors is microscopically analyzed in the framework of the quasi-classical Eilenberger equations. If the pairing interaction contains an $s$-wave ($d_{xy}$-wave) component in addition to a $d_{x^2-y^2}$-wave component, the $s$-wave ($d_{xy}$-wave) component of the order parameter is necessarily induced around a vortex in $d_{x^2-y^2}$-wave superconductors. The spatial distribution of the induced $s$-wave and $d_{xy}$-wave components is calculated. The $s$-wave component has opposite winding number around vortex near the $d_{x^2-y^2}$-vortex core and its amplitude has the shape of a four-lobe clover. The amplitude of $d_{xy}$-component has the shape of an octofoil. These are consistent with results based on the GL theory.
Enomoto Naoya
Hayashi Nobuhiko
Ichioka Masanori
Machida Kazushige
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