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用ＡＦＭ在室温和大气下对高温超导体Ｂｉ２Ｓｒ２ＣａＣｕ２Ｏ８＋δ（Ｂｉ２２１２）单晶解理面的形貌和结构进行了系统的研究。观测到解理面绝大部分是原子级平滑的晶面。在晶面的边缘观测到高度为结构单元（ｃ／２）整倍数的台阶，这与该晶体是以层状模式生长的机制相一致的。进而证明了解理位置和解理分布。在解理面的局部区域，观测到高度为１．２５ｎｍ，面积约为０．０５μｍ２的平台。Ｘ－射线微区分析证明这些小平台正是在Ｂｉ２２１２单晶生长中常存在的少量Ｂｉ２２０１相。我们的研究表明ＡＦＭ不但在研究高温超导体单晶的形貌特征方面有重要用途，而且在对晶体的质量进行分析和结构特征研究中也有重要应用。
The morphologies and structures of the cleavage planes of the high-temperature superconductor Bi2Sr2CaCu2O8 + δ (Bi2212) single crystal were systematically investigated by AFM at room temperature and in the atmosphere. Most of the observed cleavage planes are atomically smooth planes. A step height of an integral multiple of the structural unit (c / 2) is observed at the edge of the crystal plane, which is consistent with the mechanism that the crystal is grown in a layered mode. Which proves the cleavage position and cleavage distribution. In the local area of the cleavage plane, a platform with a height of 1.25 nm and an area of about 0.05 μm 2 was observed. X-ray microanalysis proves that these small platforms are just a few Bi2201 phases often present in Bi2212 single crystal growth. Our research shows that AFM has important applications not only in studying the topography of high-temperature superconductor single crystals, but also in the analysis of crystal quality and structural features.