中文摘要：

有垂直 anisotropy 的公司 / 磅 multilayers 用 dc 被扔在高真空下面的磁控管劈啪作响系统。磁化过程被与应用的地平行、垂直的磁性的部件的测量调查。公司层厚度上的公司 / 磅 multilayers 的 coercivity 的依赖被报导，在哪个公司层的全部的厚度保持不变。coercivity 与公司层厚度的增长增加，这被观察。为有一样的公司层厚度的样品当时不同全部的公司层厚度， coercivity 首先随公司层的全部的厚度的增加增加然后减少。这效果能被归因于在与支离破碎的颠倒和磅原子的磁性的极化在磁化颠倒期间在公司和磅层的接口贡献的 HC 的加速有关的 HC 的减小之间的比赛。coercivity 的变化是的结果表演强烈与公司层厚度，然而并非公司层的全部的厚度有关。在一块应用的地和容易的轴之间的角度上的 coercivity 的依赖证明成核模式在样品的磁化颠倒过程是主导的。

英文摘要：

Co/Pt multilayers with perpendicular anisotropy were deposited using a dc magnetron sputtering system under high vacuum.Magnetization process was investigated by the measurement of magnetic components parallel and perpendicular to the applied field.A dependence of the coercivity of Co/Pt multilayers on the Co layer thickness was reported,in which the total thickness of Co layers kept constant.It is observed that the coercivity increases with the increment of Co layer thickness.For the samples with the same Co layer thickness while different total Co layer thickness,the coercivity first increases and then decreases with the increase of the total thickness of Co layers.This effect could be attributed to the competition between the reduction of HC related to incoherent reversal and the step-up of HC contributed by the magnetic polarization of Pt atoms at the interface of Co and Pt layers during magnetization reversal.The results show that the change of the coercivity is strongly related to the Co layer thickness,but not the total thickness of Co layers.The dependence of the coercivity on the angle between an applied field and the easy axis shows that the nucleation mode is dominant in magnetization reversal process of the samples.