  In the extended Standard Model of particle physics, each neutrino mass
eigenstate is predicted to have a tiny but non vanishing magnetic moment
induced by quantum field theoretic corrections. These QFT-induced magnetic
momenta depend linearly on masses of the underlying mass eigenstates with a
proportionality constant ${3eG_{F}}/{(8\sqrt{2}\pi^{2})} $. As a consequence
when neutrinos are embedded in an environment containing magnetic fields the
flavour oscillations get a contribution from the induced relative phases.
