A spin-current switchable magnetic memory element includes a plurality of magnetic layers having a perpendicular magnetic anisotropy component, at least one of the plurality of magnetic layers including an alloy of a rare-earth metal and a transition metal, and at least one barrier layer formed adjacent to at least one of the plurality of magnetic layers. A pumping liner encircles a deposition chamber within which a wafer is placed and into which a precursor is introduced to form a thin film on a surface of the wafer. A trigger is movably attached to the spray gun body and is operatively coupled to the valves such that operation of the trigger opens each of the valves and fluid flows from the at least one fluid input port through the valves to the nozzle.