Large area (0.8 cm2) single-crystal films similar to 1 mu m thick of N
i-cu alloy have been electrodeposited directly onto (100) n-type GaAs.
The epitaxial relationship was found to be (001) Ni-Cu parallel to (0
01) GaAs and [110] Ni-Cu parallel to [100] GaAs. Magnetic measurements
show the films to be ferromagnetic. (C) 1995 American Institute of Ph
ysics.