Vortex Molecule in Unconventional Superconductor
Abstract
In this study we calculate numerically the vortex structurefor a two-component Ginzburg-Landau functional in the regime when time-reversal symmetry is not spontaneously broken. In a wide range of parameters a single-quantum vortex dissociates intoa bound pair (molecule) of half-quantum vortices.We determine the phase diagram of different types of vorticesin the space of parameters of the Ginzburg-Landau functional.A novel characteristic length which is related to thevortex molecule size is found.The characteristic length is longer than the coherence lengthand shorter than the magnetic penetration length.
- Publication:
-
Journal of the Physical Society of Japan
- Pub Date:
- November 2000
- DOI:
- 10.1143/JPSJ.69.3660
- Bibcode:
- 2000JPSJ...69.3660O