異方的電荷を持った層状XY格子モデルにおける超伝導相転移の三重臨界点II

抄録

In our previous paper, the anisotropic charged layered XY lattice model in high T_c superconducting oxide was introduced and the phase transition of this model was investigated using the mean field plus two loop effective energy without magnetic fluctuation. In this paper, the critical temperature and tricritical point were investigated using the mean field approximation plus anisotropic magnetic fluctual correction. It was found that the critical temperature and tricritical point were inversely propotional to the anisotropic parameter γ of the Josephson-coupling constant.