Inverse Faraday effect from the orbital angular momentum of light

It is usually admitted that the inverse Faraday effect (IFE) originates from spin angular momentum (SAM) of light. In this paper, we show part IFE in a metal induced by orbital (OAM) On basis hydrodynamic model conduction electron gas, describe dependence on and momenta as well spin-orbit interaction nonparaxial light beam. We also numerically quantify relative contributions SAM OAM to thin gold film illuminated different focused beams carrying and/or OAM. The provides an additional degree freedom control resulting optomagnetic field, thus potentially impacting various research fields, including all-optical magnetization switching spin-wave excitation.