信息技术的飞速发展对信息存储密度和容量提出了更高的要求 ,而信息存储仍是信息技术中相对薄弱的环节 ,因此新型信息存储材料的研究是超高密度信息存储的关键之一。缩小信息记录点尺寸是提高存储密度的有效途径之一。 90年代以来 ,美国、日本科学家相继报道了在无机材料上写入 The rapid development of information technology has put forward higher requirements on information storage density and capacity. Information storage is still a relatively weak link in information technology. Therefore, the research on new information storage materials is one of the keys to ultra-high density information storage. Reducing the size of the information recording dots is one of the effective ways to increase the storage density. Since the 1990s, the United States, Japan scientists have reported written in inorganic materials