Superconductivity of Quasi - Two - Dimensional Tight - Binding Electrons in a Strong Magnetic Field
نویسنده
چکیده
We have investigated the transition temperature Tc(H) of superconductivity in quasi-twodimensional (Q2D) tight-binding electrons in a strong magnetic field. When the magnetic field is parallel to 2D conducting plane, Tc(H) of the Q2D superconductor is shown to increase in an oscillatory manner as the magnetic field becomes large and to reach Tc(0) in a strong magnetic field limit for the spin-triplet superconductor. We consider the cases of on-site and nearest sites attractive interaction, and calculate the magnetic field dependences of the transition temperature for various types of symmetry. The first order transition from py-wave to px-wave is shown to occur at H ∼ 35T when the magnetic field is parallel to the y direction, which will be observed in a triplet superconductor, Sr2RuO4.
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