  Spin-triplet Cooper pairs induced in ferromagnets form the centrepiece of the
emerging field of superconducting spintronics [1,2]. Usually the focus of
research is on the spin polarization of the triplets, potentially enabling
low-dissipation magnetization switching and domain wall motion. However, the
fundamental mechanism for generating triplet pairs [3,4] also permits control
over a parameter which has not been addressed before, namely the spatial
distribution of the supercurrent. Here we demonstrate this control by tailoring
distinct supercurrent pathways in the ferromagnetic weak link of a Josephson
junction. Combining micromagnetic simulations with three-dimensional critical
current calculations, based on the Usadel description of mesoscopic
superconductivity [5], we designed a disk-shaped structure with a magnetic
vortex, which induces two distinct supercurrent channels across the junction.
The design was successfully tested with superconducting quantum interferometry
(SQI). Moreover, we show how the position of the pathways can be controlled by
moving the vortex with a magnetic field. This novel approach allows adaptable
supercurrent paths to be dynamically reconfigured to switch between different
functionalities in the same device.
