Chiriality in a three-band superconducting prism in ZFC and FC processes

Abstract

In the present work, we will study the superconducting properties of a mesoscopic three-dimensional prism with square transversal section under an external magnetic field in both Zero-Field Cooling (ZFC) and Field-Cooling (FC) process. The studied sample is a three-band system (with three condensates ${\psi }_1$, ${\psi }_2$, ${\psi }_3$), in which we take a Josephson type inter-band coupling simulated via $\gamma$ parameter. We analyze the magnetization, superconducting electronic density and free Gibbs energy considering both processes. As results, we found an interesting tunneling of vortex and anti-vortex between the bands, and vortex cluster configuration in the sample. This behaviour is due to the non-monotonic interaction between the bands.

13 pages,14 figures