论文部分内容阅读
NdTbCo/Cr amorphous films with high perpendicular magnetic anisotropy were prepared onto glass substrates by rf magnetron sputtering.The effects of Nd substitution on the magnetic and magneto-optical properties of TbCo/Cr films were investigated.It was found that partial Tb substitution by Nd would increase the saturation magnetization and the Kerr rotation angle,change the temperature dependence of magneto-optical characteristics.These results can be explained by the ferrimagnetic structure of the rare earth-transition metal alloy.When the magnetic layer composition was(Nd_(0.265)Tb_(0.735))_(31)Co_(69),a saturation magnetization of 247 emu/ cm~3 and a coercivity of 3.8 kOe at room temperature could be obtained.
NdTbCo / Cr amorphous films with high perpendicular magnetic anisotropy were prepared onto glass substrates by rf magnetron sputtering. Effects of Nd substitution on the magnetic and magneto-optical properties of TbCo / Cr films were investigated. It was found that partial Tb substitution by Nd would increase the saturation magnetization and the Kerr rotation angle, change the temperature dependence of magneto-optical characteristics. this result can be explained by the ferrimagnetic structure of the rare earth-transition metal alloy. When the magnetic layer composition was (Nd - (0.265) Tb_ (0.735)) _ (31) Co_ (69), a saturation magnetization of 247 emu / cm ~ 3 and a coercivity of 3.8 kOe at room temperature could be obtained.