Interface Mixing in Fe/LiF Multilayered Thin Film

抄録

Multilayered thin films of iron and lithium fluoride (LiF) were prepared using ultrahigh-vacuum deposition with two independently controlled E-guns as heat sources. Mössbauer spectra corresponding to metallic Fe atoms and Fe³⁺ ions were observed in these films. The magnetization curve at 4.2 K was shifted with a magnetic field cooling from room temperature where absolute values of Hc’s for + magnetic field and − magnetic field were different. This suggests that exchange anisotropy due to magnetic exchange coupling between ferromagnetic and antiferromagnetic parts exists in the film.