Effect of Iron Substitution on Growth-Induced Anisotropy in (YBi)3 Fe5O12.

Films of (Y(3-x-y)Bi(x)Pb(y))(Fe(5-z)Ga(z))O12 (z = 0 to 1. 1) and (Y(3-x-y) Bi(x)Pb(y))(Fe(5-w)In(w))O12 (w = 0 to 0.6) garnets were prepared by liquid phase epitaxy. The effects of tetrahedral Ga and octahedral In substitution on the Bi- based growth-induced uniaxial anisotropy in (YBi)3 Fe5O12 films were measured. Both Ga and In resulted in a linear decrease in the anisotropy with increasing substitution. The effect of octahedral In was twice that of tetrahedral Ga.