IEEE Transactions on Magnetics, Vol. MAG-19, No. 5 september 1983 Compositionally Modulated Co-Cr Films - A New Co Phase Robert Walmsley, Joyce Thompson, Daniel Friedman, Robert M. White, Theodore H. Geballe By modulating the concentration of Co and Cr we have been able to stabilize Co in a bcc structure. This structure is ferromagnetic with magnetic moment very close to that of the normal hexagonal phase.