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本文综述了磁信息材料和物理方面的发展和展望。首先概述了当代科学技术发展中的三大问题(能源、材料、信息)与磁学和磁性材料的关系。简要地举例说明了我们祖国是最早发现和利用物质磁性的国家,对古代磁学的发展曾经作出过许多有重要意义的贡献。磁信息材料的研究和应用虽较为年轻,但研究工作却甚为活跃,应用十分广泛。文中主要介绍了三类磁信息材料:磁记录材料、磁存储材料和磁泡材料。对每一类材料,分别陈述了它们的意义,主要应用领域,工作基本原理,对磁特性的要求,作为磁信息材料的特点,目前常用的各种材料(包括金属和非金属材料),以及该类材料发展前景的展望和值得注意的若干问题。最后指出,能源科学技术正在酝酿着新的重要的突破,材料科学技术正在向按指定性能设计新材料的“分子设计”进军,而新兴的信息科学技术也正在新的广度和深度上开拓着前进的道路。从这种意义上看,磁信息材料和物理的发展前景是有着广阔的天地的。附参考文献20篇。
This article reviews the development and outlook of magnetic information materials and physics. First, the three major issues in contemporary science and technology (energy, materials, information) and the relationship between magnetism and magnetic materials are outlined. A brief description of our motherland is the earliest discovery and use of material magnetism of the country, the development of ancient magnetism has made many significant contributions. The research and application of magnetic information materials are relatively young, but the research work is very active and widely used. The paper mainly introduces three types of magnetic information materials: magnetic recording materials, magnetic storage materials and bubble materials. For each of these types of materials, their significance, main areas of application, basic principles of work, requirements on magnetic properties, characteristics of magnetic information materials, various materials commonly used today (including metallic and non-metallic materials), and Prospects for the development of such materials and several issues worth noting. Finally, he pointed out that energy science and technology are brewing new and important breakthroughs. Materials science and technology are marching toward the “molecular design” of designing new materials according to specified performance. The emerging information science and technology are also expanding in new breadth and depth The way forward. In this sense, the development prospect of magnetic information material and physics has a vast world. Attached 20 references.