Ginzburg--Landau Equations for Coexistent States of Superconductivity and Antiferromagnetism in t--J Model

@article{Kuboki2013GinzburgLandauEF,
title={Ginzburg--Landau Equations for Coexistent States of Superconductivity and Antiferromagnetism in t--J Model},
author={K. Kuboki},
journal={Journal of the Physical Society of Japan},
year={2013},
volume={82},
pages={014701-014701}
}

Ginzburg–Landau (GL) equations for the coexistent state of superconductivity and antiferromagnetism are derived microscopically from the \(t\)–\(J\) model with extended transfer integrals. GL equations and the GL free energy, which are obtained based on the slave-boson mean-field approximation, reflect the electronic structure of the microscopic model, especially the evolution of the Fermi surface due to the change of the doping rate. Thus they are suitable for studying the material dependence… CONTINUE READING