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Remanence in high-density recording media

机译:高密度记录介质中的剩磁

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摘要

The uniaxial anisotropy of independent single domain ferromagnetic grains in high density CoCrPtTa longitudinal recording media was derived from remanence measurements. The distribution of the uniaxial anisotropy axis directions was estimated from a measurement of the Kerr rotation in a perpendicular field. The dispersion of anisotropy fields was estimated from the remanence measurements after application of pulse fields in the film plane. Application of an external field to 45 deg from the film plane results in sharp magnetization reversal with a minimum writing field.
机译:从剩磁测量得出高密度CoCrPtTa纵向记录介质中独立单畴铁磁晶粒的单轴各向异性。单轴各向异性轴方向的分布是通过对垂直场中克尔旋转的测量来估计的。在薄膜平面中施加脉冲场后,根据剩磁测量值来估计各向异性场的弥散。在距胶片平面45度的范围内施加外磁场会导致磁化强度急剧反转,而写入场最小。

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