已有不少关于磁记录材料的总结性文章,可参阅文献[1][2]等。1979年以后,出现了金属薄膜磁带等,但目前使用单畴颗粒磁记录材料仍占绝大多数。因此,本文只简要介绍单畴颗粒磁记录材料的晚近进展。包括三方面内容:1、目前单畴颗粒磁记录材料的水平;2、磁带的静态磁性和电声性能之间的关系;3、磁性材料 There are a lot of summary articles on magnetic recording materials, see [1] [2] and so on. After 1979, there appeared a metal film tape, etc., but the current use of monodispersed magnetic recording material is still the vast majority. Therefore, this article only briefly introduces recent developments in single domain magnetic recording materials. Including three aspects: 1, the current level of single domain magnetic recording material; 2, the relationship between static magnetic and electro-acoustic properties of magnetic tape; 3, the magnetic material