Ferromagnetic films, useful for computer applications, have been deposited from a modified Brenner bath by chemical reduction using hypophosphite. The deposits contain about 25% iron, 1–0.5% phosphorus, small amounts of oxygen, carbon, etc. The balance is nickel. The films are well suited for memory applications because of their high creeping threshold and their fast coherent rotational switching. The effects of certain plating parameters on the properties, in particular on the magnetic properties, are discussed.