Annealing effects on magnetic properties of amorphous TbFeCo films

作者：Zhou, Y^*; Yang, CS; Zhou, D; Zhao, XL; Zhang, JL

来源：4th International Conference on Thin Film Physics and Applications, China,Shanghai, 2000-05-08 to 2000-05-11.

DOI：10.1117/12.408308

• amorphous TbFeCo films
• annealing effect
• magnetization loops

Annealing effects on magnetization behaviors of amorphous TbFeCo films have been investigated by vibrating sample magnetometer. Thermal annealing at 100 degreesC shows that large perpendicular anisotropy and coercivity still remain after annealing, and inverse magnetostrictive anisotropy is responsible for the decrease of coercivity. It is shown that the coercivity and anisotropy decrease greatly after annealing at temperature over 130 degreesC, however, long time annealing does not affect the magnetic properties of TbFeCo films evidently. Annealing at 180 degreesC shows that the room temperature magnetization loop in perpendicular direction is similar to that for films annealed at 130 degreesC, but the in-plane magnetization loop becomes strong. The remains of perpendicular anisotropy may be attributed to the pair ordering anisotropy and can not be eliminated by low temperature annealing.

• 出版日期2000
• 单位上海交通大学