摘要:
A single crystal Fe film is deposited on a (100) gallium arsenide substrate (11) by ion beam (34) sputtering the Fe film. The sputtered Fe atoms (34) are imparted with energies in the range of about 1 electron volt to at least 10 electron volts to impart sufficient kinetic energy to said ions to allow said ions to have high surface diffusion rates, thereby permitting the atoms to be located at the proper lattice sites of the Fe crystal formed over the gallium arsenide substrate (11). The sputtering is carried out in a vacuum chamber (12) by directing a beam (33) of high energy argon ions from an ion gun (16) onto an iron target (24). The temperature of the substrate (11) is controlled by a heating coil device (26).