In this paper, the remanence properties of Co-Sn, Co-Ti and Co-Ti-Sn substituted Ba-ferrite (BaF) oriented particulate samples are compared with those of some oriented acicular particulate samples. A new parameter, the minor remanence distribution (MRD), is proposed to review the remanence properties of magnetic particles and the capabilities for resisting the recording demagnetization of magnetic recording media. It is shown that the MRD values of the oriented BaF particulate samples were smaller compared to oriented Co-/spl gamma/-Fe/sub 2/O/sub 3/ samples, even though the squareness ratios (SR) of some of the BaF samples were smaller than those of the Co-/spl gamma/-Fe/sub 2/O/sub 3/ samples. It Is the small MRD, SFD/sub r/, IRS and large DH/sub r/ of a medium that can result in a large resistance to the effects of recording demagnetization and therefore in superior characteristics for high density magnetic recording. Since Co-Sn substituted BaF platelet-shaped particles exhibit these characteristics and have a very low temperature coefficient of coercivity, these particles can be expected to be a promising candidate for high density magnetic recording.
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机译：本文将Co-Sn，Co-Ti和Co-Ti-Sn取代钡铁氧体（BaF）定向颗粒样品的剩磁性能与某些定向针状颗粒样品的剩磁性能进行了比较。提出了一个新参数，次要剩磁分布（MRD），以审查磁性颗粒的剩磁特性以及抵抗磁记录介质记录退磁的能力。结果表明，即使某些BaF的矩形比（SR），取向的BaF微粒样品的MRD值也比取向的Co- / splγ/ -Fe / sub 2 / O / sub 3 /样品小。样品小于Co- / splγ/ -Fe / sub 2 / O / sub 3 /样品的样品。介质的MRD，SFD / sub //，IRS和DH / sub //大，会导致对记录退磁效果的较大抵抗力，从而为高密度磁记录带来出色的特性。由于Co-Sn取代的BaF片状颗粒表现出这些特性并且具有非常低的矫顽力温度系数，因此可以预期这些颗粒是用于高密度磁记录的有希望的候选者。
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