  Understanding the nature of vortices in type-II superconductors has been
vital for deepening the physics of exotic superconductors and applying
superconducting materials to future electronic devices. A recent study has
shown that the LiTi2O4(111) thin film offers a unique experimental platform to
unveil the nature of the vortex along the curved Josephson junction. This study
successfully visualized individual Josephson vortices along the curved
Josephson junctions using in-situ spectroscopic scanning tunneling microscopy
on LiTi2O4 (111) epitaxial thin films. Notably, the local curvature of the
Josephson junction was discovered to control the position of Josephson
vortices. Furthermore, the numerical simulation reproduces the critical role of
the curvature of the Josephson junction. This study provides guidelines to
control Josephson vortices through geometrical ways, such as mechanical
controlling of superconducting materials and their devices.
