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本工作利用在不同气氛下真空蒸发淀积制备的Ni—Fe合金薄膜,用轉矩磁強計測量了轉矩曲線。结果表明,在各种气氛下制备的薄膜的各向異性值不同,而且通过易磁化及难磁化方向热处理后各向異性值的变化也不同。由此看出,薄膜中的气孔和杂质等缺陷的差別对感生各異性起着不同的作用。
In this work, Ni-Fe alloy films prepared by vacuum evaporation in different atmospheres were used to measure the torque curve with torque magnetometer. The results show that the anisotropy values of the films prepared under different atmospheres are different, and the anisotropic values change with the easy-to-magnetize and hard-magnetizable directions. It can be seen that the differences in defects such as pores and impurities in the thin film play different roles in inducing anisotropy.