  We present a theoretical study of a ferromagnet/s-wave superconductor
junction to investigate the signatures of induced triplet correlations in the
system. We apply the extended BTK-formalism and allow for an arbitrary
magnetization strength/direction of the ferromagnet, a spin-active barrier,
Fermi-vector mismatch, and different effective masses in the two systems. It is
found that the phase associated with the $xy$-components of the magnetization
in the ferromagnet couples with the superconducting phase and induces
spin-triplet pairing correlations in the superconductor, if the tunneling
barrier acts as a spin-filter. This feature leads to an induced spin-triplet
pairing correlation in the ferromagnet, along with a spin-triplet electron-hole
coherence due to an interplay between the ferromagnetic and superconducting
phase. As our main result, we investigate the experimental signatures of
retrorelection, manifested in the tunneling conductance of a ferromagnet/s-wave
superconductor junction with a spin-active interface.
